920382788 has 54 divisors (see below), whose sum is σ = 1853240634. Its totient is φ = 398391552.

The previous prime is 920382779. The next prime is 920382791. The reversal of 920382788 is 887283029.

It can be written as a sum of positive squares in 3 ways, for example, as 20502784 + 899880004 = 4528^2 + 29998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3252095 + ... + 3252377.

It is an arithmetic number, because the mean of its divisors is an integer number (34319271).

Almost surely, 2^920382788 is an apocalyptic number.

It is an amenable number.

920382788 is an abundant number, since it is smaller than the sum of its proper divisors (932857846).

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

920382788 is a wasteful number, since it uses less digits than its factorization.

920382788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 920382788 is about 30337.8111932947. The cubic root of 920382788 is about 972.7236971281.

The spelling of 920382788 in words is "nine hundred twenty million, three hundred eighty-two thousand, seven hundred eighty-eight".