764426740 has 48 divisors (see below), whose sum is σ = 2001412224. Its totient is φ = 238262400.

The previous prime is 764426731. The next prime is 764426759. The reversal of 764426740 is 47624467.

764426740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 764426693 and 764426702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246651 + ... + 249730.

It is an arithmetic number, because the mean of its divisors is an integer number (41696088).

Almost surely, 2^764426740 is an apocalyptic number.

764426740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

764426740 is an abundant number, since it is smaller than the sum of its proper divisors (1236985484).

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

764426740 is a wasteful number, since it uses less digits than its factorization.

764426740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496408 (or 496406 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 764426740 is about 27648.2683002028. The cubic root of 764426740 is about 914.3489212022.

It can be divided in two parts, 76 and 4426740, that added together give a square (4426816 = 2104²).

The spelling of 764426740 in words is "seven hundred sixty-four million, four hundred twenty-six thousand, seven hundred forty".