397538590976240 has 160 divisors (see below), whose sum is σ = 1056782655866880. Its totient is φ = 136238852385792.

The previous prime is 397538590976227. The next prime is 397538590976257. The reversal of 397538590976240 is 42679095835793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16407540446 + ... + 16407564674.

It is an arithmetic number, because the mean of its divisors is an integer number (6604891599168).

Almost surely, 2^{397538590976240} is an apocalyptic number.

It is an amenable number.

397538590976240 is an abundant number, since it is smaller than the sum of its proper divisors (659244064890640).

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

397538590976240 is a wasteful number, since it uses less digits than its factorization.

397538590976240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35959 (or 35953 counting only the distinct ones).

The product of its (nonzero) digits is 3086294400, while the sum is 77.

The spelling of 397538590976240 in words is "three hundred ninety-seven trillion, five hundred thirty-eight billion, five hundred ninety million, nine hundred seventy-six thousand, two hundred forty".