397178950 has 48 divisors (see below), whose sum is σ = 881015040. Its totient is φ = 130252320.

The previous prime is 397178941. The next prime is 397178953. The reversal of 397178950 is 59871793.

It is a super-2 number, since 2×397178950² = 315502236646205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 397178894 and 397178903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397178953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16620 + ... + 32719.

It is an arithmetic number, because the mean of its divisors is an integer number (18354480).

Almost surely, 2^397178950 is an apocalyptic number.

397178950 is an abundant number, since it is smaller than the sum of its proper divisors (483836090).

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

397178950 is a wasteful number, since it uses less digits than its factorization.

397178950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49381 (or 49376 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 397178950 is about 19929.3489607664. The cubic root of 397178950 is about 735.0700721446.

The spelling of 397178950 in words is "three hundred ninety-seven million, one hundred seventy-eight thousand, nine hundred fifty".