396974241440 has 96 divisors (see below), whose sum is σ = 1072207704960. Its totient is φ = 136057549824.

The previous prime is 396974241437. The next prime is 396974241487. The reversal of 396974241440 is 44142479693.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197159 + ... + 3319001.

It is an arithmetic number, because the mean of its divisors is an integer number (11168830260).

Almost surely, 2^396974241440 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 396974241440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536103852480).

396974241440 is an abundant number, since it is smaller than the sum of its proper divisors (675233463520).

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

396974241440 is a wasteful number, since it uses less digits than its factorization.

396974241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124774 (or 124766 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 396974241440 in words is "three hundred ninety-six billion, nine hundred seventy-four million, two hundred forty-one thousand, four hundred forty".