397478350 has 24 divisors (see below), whose sum is σ = 764805960. Its totient is φ = 153508320.

The previous prime is 397478317. The next prime is 397478351. The reversal of 397478350 is 53874793.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 397478350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397478351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135612 + ... + 138511.

It is an arithmetic number, because the mean of its divisors is an integer number (31866915).

Almost surely, 2^397478350 is an apocalyptic number.

397478350 is a deficient number, since it is larger than the sum of its proper divisors (367327610).

397478350 is a wasteful number, since it uses less digits than its factorization.

397478350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274164 (or 274159 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 397478350 is about 19936.8590806075. The cubic root of 397478350 is about 735.2547283747.

The spelling of 397478350 in words is "three hundred ninety-seven million, four hundred seventy-eight thousand, three hundred fifty".