668574350 has 24 divisors (see below), whose sum is σ = 1297617840. Its totient is φ = 255801920.

The previous prime is 668574311. The next prime is 668574353. The reversal of 668574350 is 53475866.

It is a super-2 number, since 2×668574350² = 893983322955845000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668574353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289535 + ... + 291834.

It is an arithmetic number, because the mean of its divisors is an integer number (54067410).

Almost surely, 2^668574350 is an apocalyptic number.

668574350 is a deficient number, since it is larger than the sum of its proper divisors (629043490).

668574350 is a wasteful number, since it uses less digits than its factorization.

668574350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581404 (or 581399 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 668574350 is about 25856.8047136532. The cubic root of 668574350 is about 874.4129286482.

The spelling of 668574350 in words is "six hundred sixty-eight million, five hundred seventy-four thousand, three hundred fifty".