397537236404 has 24 divisors (see below), whose sum is σ = 867353971008. Its totient is φ = 154884637440.

The previous prime is 397537236401. The next prime is 397537236427. The reversal of 397537236404 is 404632735793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397537236401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645352349 + ... + 645352964.

It is an arithmetic number, because the mean of its divisors is an integer number (36139748792).

Almost surely, 2^397537236404 is an apocalyptic number.

It is an amenable number.

397537236404 is an abundant number, since it is smaller than the sum of its proper divisors (469816734604).

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

397537236404 is a wasteful number, since it uses less digits than its factorization.

397537236404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290705335 (or 1290705333 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 53.

The spelling of 397537236404 in words is "three hundred ninety-seven billion, five hundred thirty-seven million, two hundred thirty-six thousand, four hundred four".