396397948 has 6 divisors (see below), whose sum is σ = 693696416. Its totient is φ = 198198972.

The previous prime is 396397927. The next prime is 396397949. The reversal of 396397948 is 849793693.

It is a super-2 number, since 2×396397948² = 314262666357221408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396397892 and 396397901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396397949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49549740 + ... + 49549747.

Almost surely, 2^396397948 is an apocalyptic number.

It is an amenable number.

396397948 is a deficient number, since it is larger than the sum of its proper divisors (297298468).

396397948 is a wasteful number, since it uses less digits than its factorization.

396397948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99099491 (or 99099489 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 58.

The square root of 396397948 is about 19909.7450511050. The cubic root of 396397948 is about 734.5879486579.

The spelling of 396397948 in words is "three hundred ninety-six million, three hundred ninety-seven thousand, nine hundred forty-eight".