395739636 has 12 divisors (see below), whose sum is σ = 923392512. Its totient is φ = 131913208.

The previous prime is 395739629. The next prime is 395739649. The reversal of 395739636 is 636937593.

It is a tau number, because it is divible by the number of its divisors (12).

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, 16489140 + ... + 16489163.

It is an arithmetic number, because the mean of its divisors is an integer number (76949376).

Almost surely, 2^395739636 is an apocalyptic number.

It is an amenable number.

395739636 is an abundant number, since it is smaller than the sum of its proper divisors (527652876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395739636 is a wasteful number, since it uses less digits than its factorization.

395739636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32978310 (or 32978308 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 51.

The square root of 395739636 is about 19893.2057748368. The cubic root of 395739636 is about 734.1810713307.

The spelling of 395739636 in words is "three hundred ninety-five million, seven hundred thirty-nine thousand, six hundred thirty-six".