352400240 has 20 divisors (see below), whose sum is σ = 819330744. Its totient is φ = 140960064.

The previous prime is 352400197. The next prime is 352400261. The reversal of 352400240 is 42004253.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202422 + ... + 2202581.

Almost surely, 2^352400240 is an apocalyptic number.

It is an amenable number.

352400240 is an abundant number, since it is smaller than the sum of its proper divisors (466930504).

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

352400240 is a wasteful number, since it uses less digits than its factorization.

352400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405016 (or 4405010 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 352400240 is about 18772.3264408011. The cubic root of 352400240 is about 706.3371768024.

Adding to 352400240 its reverse (42004253), we get a palindrome (394404493).

The spelling of 352400240 in words is "three hundred fifty-two million, four hundred thousand, two hundred forty".