764372020 has 48 divisors (see below), whose sum is σ = 1741089168. Its totient is φ = 280739840.

The previous prime is 764371987. The next prime is 764372023. The reversal of 764372020 is 20273467.

It is a happy number.

764372020 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 8 ways, for example, as 29528356 + 734843664 = 5434^2 + 27108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764372023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13477 + ... + 41356.

It is an arithmetic number, because the mean of its divisors is an integer number (36272691).

Almost surely, 2^764372020 is an apocalyptic number.

It is an amenable number.

764372020 is an abundant number, since it is smaller than the sum of its proper divisors (976717148).

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

764372020 is a wasteful number, since it uses less digits than its factorization.

764372020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54900 (or 54898 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 764372020 is about 27647.2787087626. The cubic root of 764372020 is about 914.3271033858.

The spelling of 764372020 in words is "seven hundred sixty-four million, three hundred seventy-two thousand, twenty".