340032240 has 120 divisors (see below), whose sum is σ = 1146073968. Its totient is φ = 90347520.

The previous prime is 340032193. The next prime is 340032241. The reversal of 340032240 is 42230043.

340032240 is a `hidden beast` number, since 340 + 0 + 322 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340032241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249160 + ... + 250520.

Almost surely, 2^340032240 is an apocalyptic number.

340032240 is a gapful number since it is divisible by the number (30) 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 340032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573036984).

340032240 is an abundant number, since it is smaller than the sum of its proper divisors (806041728).

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

340032240 is a wasteful number, since it uses less digits than its factorization.

340032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1718 counting only the distinct ones).

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

The square root of 340032240 is about 18439.9631236074. The cubic root of 340032240 is about 697.9752647890.

Adding to 340032240 its reverse (42230043), we get a palindrome (382262283).

The spelling of 340032240 in words is "three hundred forty million, thirty-two thousand, two hundred forty".