920666244 has 24 divisors (see below), whose sum is σ = 2152610208. Its totient is φ = 306261760.

The previous prime is 920666231. The next prime is 920666251. The reversal of 920666244 is 442666029.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72237 + ... + 84020.

It is an arithmetic number, because the mean of its divisors is an integer number (89692092).

Almost surely, 2^920666244 is an apocalyptic number.

It is an amenable number.

920666244 is an abundant number, since it is smaller than the sum of its proper divisors (1231943964).

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

920666244 is a wasteful number, since it uses less digits than its factorization.

920666244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156755 (or 156753 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 920666244 is about 30342.4824956693. The cubic root of 920666244 is about 972.8235454634.

The spelling of 920666244 in words is "nine hundred twenty million, six hundred sixty-six thousand, two hundred forty-four".