920668572 has 24 divisors (see below), whose sum is σ = 2386918800. Its totient is φ = 306889488.

The previous prime is 920668561. The next prime is 920668577. The reversal of 920668572 is 275866029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920668577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4262247 + ... + 4262462.

It is an arithmetic number, because the mean of its divisors is an integer number (99454950).

Almost surely, 2^920668572 is an apocalyptic number.

It is an amenable number.

920668572 is an abundant number, since it is smaller than the sum of its proper divisors (1466250228).

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

920668572 is a wasteful number, since it uses less digits than its factorization.

920668572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524722 (or 8524714 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 920668572 is about 30342.5208577007. The cubic root of 920668572 is about 972.8243654244.

The spelling of 920668572 in words is "nine hundred twenty million, six hundred sixty-eight thousand, five hundred seventy-two".