764425442 has 48 divisors (see below), whose sum is σ = 1366113600. Its totient is φ = 317731680.

The previous prime is 764425433. The next prime is 764425457. The reversal of 764425442 is 244524467.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 764425396 and 764425405.

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 23 ways as a sum of consecutive naturals, for example, 228659 + ... + 231977.

It is an arithmetic number, because the mean of its divisors is an integer number (28460700).

Almost surely, 2^764425442 is an apocalyptic number.

764425442 is a deficient number, since it is larger than the sum of its proper divisors (601688158).

764425442 is a wasteful number, since it uses less digits than its factorization.

764425442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399 (or 3380 counting only the distinct ones).

The product of its digits is 215040, while the sum is 38.

The square root of 764425442 is about 27648.2448267517. The cubic root of 764425442 is about 914.3484036791.

The spelling of 764425442 in words is "seven hundred sixty-four million, four hundred twenty-five thousand, four hundred forty-two".