340240032 has 144 divisors (see below), whose sum is σ = 1062603360. Its totient is φ = 102412800.

The previous prime is 340240031. The next prime is 340240073. The reversal of 340240032 is 230042043.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×340240032² = 231526558750722048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 340239987 and 340240014.

It is not an unprimeable number, because it can be changed into a prime (340240031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668194 + ... + 668702.

It is an arithmetic number, because the mean of its divisors is an integer number (7379190).

Almost surely, 2^340240032 is an apocalyptic number.

340240032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340240032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531301680).

340240032 is an abundant number, since it is smaller than the sum of its proper divisors (722363328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340240032 is a wasteful number, since it uses less digits than its factorization.

340240032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 340240032 is about 18445.5965476858. The cubic root of 340240032 is about 698.1174122348.

Adding to 340240032 its reverse (230042043), we get a palindrome (570282075).

It can be divided in two parts, 3402 and 40032, that added together give a palindrome (43434).

The spelling of 340240032 in words is "three hundred forty million, two hundred forty thousand, thirty-two".