395031872 has 14 divisors (see below), whose sum is σ = 783891498. Its totient is φ = 197515904.

The previous prime is 395031863. The next prime is 395031887. The reversal of 395031872 is 278130593.

It can be written as a sum of positive squares in only one way, i.e., 391406656 + 3625216 = 19784^2 + 1904^2 .

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, 3086123 + ... + 3086250.

Almost surely, 2^395031872 is an apocalyptic number.

395031872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

395031872 is a deficient number, since it is larger than the sum of its proper divisors (388859626).

395031872 is an equidigital number, since it uses as much as digits as its factorization.

395031872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172385 (or 6172375 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 395031872 is about 19875.4087253571. The cubic root of 395031872 is about 733.7431259665.

The spelling of 395031872 in words is "three hundred ninety-five million, thirty-one thousand, eight hundred seventy-two".