920672064 has 84 divisors (see below), whose sum is σ = 2841958756. Its totient is φ = 283281408.

The previous prime is 920672047. The next prime is 920672089. The reversal of 920672064 is 460276029.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 528632064 + 392040000 = 22992^2 + 19800^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53989 + ... + 68964.

Almost surely, 2^920672064 is an apocalyptic number.

It is an amenable number.

920672064 is an abundant number, since it is smaller than the sum of its proper divisors (1921286692).

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

920672064 is a wasteful number, since it uses less digits than its factorization.

920672064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122984 (or 122971 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 920672064 is about 30342.5784006567. The cubic root of 920672064 is about 972.8255953633.

The spelling of 920672064 in words is "nine hundred twenty million, six hundred seventy-two thousand, sixty-four".