392145272 has 8 divisors (see below), whose sum is σ = 735272400. Its totient is φ = 196072632.

The previous prime is 392145253. The next prime is 392145287. The reversal of 392145272 is 272541293.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24509072 + ... + 24509087.

It is an arithmetic number, because the mean of its divisors is an integer number (91909050).

Almost surely, 2^392145272 is an apocalyptic number.

It is an amenable number.

392145272 is a deficient number, since it is larger than the sum of its proper divisors (343127128).

392145272 is a wasteful number, since it uses less digits than its factorization.

392145272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49018165 (or 49018161 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 392145272 is about 19802.6582054026. The cubic root of 392145272 is about 731.9515380938.

The spelling of 392145272 in words is "three hundred ninety-two million, one hundred forty-five thousand, two hundred seventy-two".