920809924 has 6 divisors (see below), whose sum is σ = 1611417374. Its totient is φ = 460404960.

The previous prime is 920809891. The next prime is 920809927. The reversal of 920809924 is 429908029.

It is a happy number.

920809924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 906612100 + 14197824 = 30110^2 + 3768^2 .

It is a super-2 number, since 2×920809924² = 1695781832273771552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (920809927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115101237 + ... + 115101244.

Almost surely, 2^920809924 is an apocalyptic number.

It is an amenable number.

920809924 is a deficient number, since it is larger than the sum of its proper divisors (690607450).

920809924 is a wasteful number, since it uses less digits than its factorization.

920809924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230202485 (or 230202483 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 920809924 is about 30344.8500408224. The cubic root of 920809924 is about 972.8741494028.

The spelling of 920809924 in words is "nine hundred twenty million, eight hundred nine thousand, nine hundred twenty-four".