920576820 has 48 divisors (see below), whose sum is σ = 2585903040. Its totient is φ = 244697856.

The previous prime is 920576777. The next prime is 920576849. The reversal of 920576820 is 28675029.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5730 + ... + 43289.

It is an arithmetic number, because the mean of its divisors is an integer number (53872980).

Almost surely, 2^920576820 is an apocalyptic number.

It is an amenable number.

920576820 is an abundant number, since it is smaller than the sum of its proper divisors (1665326220).

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

920576820 is a wasteful number, since it uses less digits than its factorization.

920576820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49344 (or 49342 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 920576820 is about 30341.0088823691. The cubic root of 920576820 is about 972.7920477699.

The spelling of 920576820 in words is "nine hundred twenty million, five hundred seventy-six thousand, eight hundred twenty".