394702572 has 48 divisors (see below), whose sum is σ = 1029216384. Its totient is φ = 116688000.

The previous prime is 394702541. The next prime is 394702621. The reversal of 394702572 is 275207493.

It is a self number, because there is not a number n which added to its sum of digits gives 394702572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31054 + ... + 41877.

It is an arithmetic number, because the mean of its divisors is an integer number (21442008).

Almost surely, 2^394702572 is an apocalyptic number.

It is an amenable number.

394702572 is an abundant number, since it is smaller than the sum of its proper divisors (634513812).

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

394702572 is a wasteful number, since it uses less digits than its factorization.

394702572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72990 (or 72988 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 394702572 is about 19867.1228918533. The cubic root of 394702572 is about 733.5391856446.

The spelling of 394702572 in words is "three hundred ninety-four million, seven hundred two thousand, five hundred seventy-two".