920497980 has 48 divisors (see below), whose sum is σ = 2729008800. Its totient is φ = 231026688.

The previous prime is 920497933. The next prime is 920498003. The reversal of 920497980 is 89794029.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 450205 + ... + 452244.

It is an arithmetic number, because the mean of its divisors is an integer number (56854350).

Almost surely, 2^920497980 is an apocalyptic number.

It is an amenable number.

920497980 is an abundant number, since it is smaller than the sum of its proper divisors (1808510820).

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

920497980 is a wasteful number, since it uses less digits than its factorization.

920497980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902478 (or 902476 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 920497980 is about 30339.7096228688. The cubic root of 920497980 is about 972.7642763723.

The spelling of 920497980 in words is "nine hundred twenty million, four hundred ninety-seven thousand, nine hundred eighty".