397150478 has 16 divisors (see below), whose sum is σ = 604740816. Its totient is φ = 195592320.

The previous prime is 397150433. The next prime is 397150487. The reversal of 397150478 is 874051793.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31448 + ... + 42228.

It is an arithmetic number, because the mean of its divisors is an integer number (37796301).

Almost surely, 2^397150478 is an apocalyptic number.

397150478 is a deficient number, since it is larger than the sum of its proper divisors (207590338).

397150478 is a wasteful number, since it uses less digits than its factorization.

397150478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11059.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 397150478 is about 19928.6346245798. The cubic root of 397150478 is about 735.0525070854.

It can be divided in two parts, 39 and 7150478, that added together give a palindrome (7150517).

The spelling of 397150478 in words is "three hundred ninety-seven million, one hundred fifty thousand, four hundred seventy-eight".