764349740 has 72 divisors (see below), whose sum is σ = 2016411936. Its totient is φ = 238233600.

The previous prime is 764349683. The next prime is 764349749. The reversal of 764349740 is 47943467.

764349740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 764349691 and 764349700.

It is not an unprimeable number, because it can be changed into a prime (764349749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5621 + ... + 39500.

Almost surely, 2^764349740 is an apocalyptic number.

764349740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

764349740 is an abundant number, since it is smaller than the sum of its proper divisors (1252062196).

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

764349740 is a wasteful number, since it uses less digits than its factorization.

764349740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45159 (or 45146 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 764349740 is about 27646.8757728608. The cubic root of 764349740 is about 914.3182196637.

The spelling of 764349740 in words is "seven hundred sixty-four million, three hundred forty-nine thousand, seven hundred forty".