390756572 has 12 divisors (see below), whose sum is σ = 686024976. Its totient is φ = 194749440.

The previous prime is 390756571. The next prime is 390756601. The reversal of 390756572 is 275657093.

It is a super-2 number, since 2×390756572² = 305381397122382368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390756571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155813 + ... + 158300.

It is an arithmetic number, because the mean of its divisors is an integer number (57168748).

Almost surely, 2^390756572 is an apocalyptic number.

It is an amenable number.

390756572 is a deficient number, since it is larger than the sum of its proper divisors (295268404).

390756572 is a wasteful number, since it uses less digits than its factorization.

390756572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314428 (or 314426 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 390756572 is about 19767.5636333869. The cubic root of 390756572 is about 731.0864986974.

The spelling of 390756572 in words is "three hundred ninety million, seven hundred fifty-six thousand, five hundred seventy-two".