394725708 has 72 divisors (see below), whose sum is σ = 1079332800. Its totient is φ = 120911616.

The previous prime is 394725677. The next prime is 394725713. The reversal of 394725708 is 807527493.

394725708 is a `hidden beast` number, since 3 + 9 + 4 + 72 + 570 + 8 = 666.

It is a super-2 number, since 2×394725708² = 311616769112202528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110088 + ... + 113616.

Almost surely, 2^394725708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394725708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539666400).

394725708 is an abundant number, since it is smaller than the sum of its proper divisors (684607092).

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

394725708 is a wasteful number, since it uses less digits than its factorization.

394725708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 394725708 is about 19867.7051518287. The cubic root of 394725708 is about 733.5535178129.

The spelling of 394725708 in words is "three hundred ninety-four million, seven hundred twenty-five thousand, seven hundred eight".