395660728 has 16 divisors (see below), whose sum is σ = 752937480. Its totient is φ = 194877408.

The previous prime is 395660687. The next prime is 395660761. The reversal of 395660728 is 827066593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368551 + ... + 369622.

Almost surely, 2^395660728 is an apocalyptic number.

It is an amenable number.

395660728 is a deficient number, since it is larger than the sum of its proper divisors (357276752).

395660728 is a wasteful number, since it uses less digits than its factorization.

395660728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738246 (or 738242 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 395660728 is about 19891.2223857660. Note that the first 3 decimals coincide. The cubic root of 395660728 is about 734.1322710542.

The spelling of 395660728 in words is "three hundred ninety-five million, six hundred sixty thousand, seven hundred twenty-eight".