397438334 has 16 divisors (see below), whose sum is σ = 600791040. Its totient is φ = 197180760.

The previous prime is 397438319. The next prime is 397438357. The reversal of 397438334 is 433834793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160397 + ... + 162855.

It is an arithmetic number, because the mean of its divisors is an integer number (37549440).

Almost surely, 2^397438334 is an apocalyptic number.

397438334 is a deficient number, since it is larger than the sum of its proper divisors (203352706).

397438334 is a wasteful number, since it uses less digits than its factorization.

397438334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 653184, while the sum is 44.

The square root of 397438334 is about 19935.8554870364. The cubic root of 397438334 is about 735.2300537053.

The spelling of 397438334 in words is "three hundred ninety-seven million, four hundred thirty-eight thousand, three hundred thirty-four".