397769332 has 24 divisors (see below), whose sum is σ = 775837440. Its totient is φ = 177333120.

The previous prime is 397769321. The next prime is 397769341. The reversal of 397769332 is 233967793.

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, 152644 + ... + 155227.

It is an arithmetic number, because the mean of its divisors is an integer number (32326560).

Almost surely, 2^397769332 is an apocalyptic number.

It is an amenable number.

397769332 is a deficient number, since it is larger than the sum of its proper divisors (378068108).

397769332 is a wasteful number, since it uses less digits than its factorization.

397769332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307911 (or 307909 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 49.

The square root of 397769332 is about 19944.1553343329. The cubic root of 397769332 is about 735.4341039346.

The spelling of 397769332 in words is "three hundred ninety-seven million, seven hundred sixty-nine thousand, three hundred thirty-two".