397645454252 has 12 divisors (see below), whose sum is σ = 695901472896. Its totient is φ = 198816462000.

The previous prime is 397645454251. The next prime is 397645454287. The reversal of 397645454252 is 252454546793.

It is a super-3 number, since 3×397645454252³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (397645454251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421999 + ... + 1678502.

It is an arithmetic number, because the mean of its divisors is an integer number (57991789408).

Almost surely, 2^397645454252 is an apocalyptic number.

It is an amenable number.

397645454252 is a deficient number, since it is larger than the sum of its proper divisors (298256018644).

397645454252 is a wasteful number, since it uses less digits than its factorization.

397645454252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132568 (or 3132566 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 56.

The spelling of 397645454252 in words is "three hundred ninety-seven billion, six hundred forty-five million, four hundred fifty-four thousand, two hundred fifty-two".