340012240 has 160 divisors (see below), whose sum is σ = 893112480. Its totient is φ = 119734272.

The previous prime is 340012229. The next prime is 340012249. The reversal of 340012240 is 42210043.

It can be written as a sum of positive squares in 16 ways, for example, as 18455616 + 321556624 = 4296^2 + 17932^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340012249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459164 + ... + 1459396.

It is an arithmetic number, because the mean of its divisors is an integer number (5581953).

Almost surely, 2^340012240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446556240).

340012240 is an abundant number, since it is smaller than the sum of its proper divisors (553100240).

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

340012240 is a wasteful number, since it uses less digits than its factorization.

340012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 340012240 is about 18439.4208151992. The cubic root of 340012240 is about 697.9615800288.

Adding to 340012240 its reverse (42210043), we get a palindrome (382222283).

The spelling of 340012240 in words is "three hundred forty million, twelve thousand, two hundred forty".