764389242 has 48 divisors (see below), whose sum is σ = 1699457760. Its totient is φ = 248171616.

The previous prime is 764389237. The next prime is 764389243. The reversal of 764389242 is 242983467.

It is not an unprimeable number, because it can be changed into a prime (764389243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323128 + ... + 325484.

It is an arithmetic number, because the mean of its divisors is an integer number (35405370).

Almost surely, 2^764389242 is an apocalyptic number.

764389242 is an abundant number, since it is smaller than the sum of its proper divisors (935068518).

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

764389242 is a wasteful number, since it uses less digits than its factorization.

764389242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827 (or 2824 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 764389242 is about 27647.5901662333. The cubic root of 764389242 is about 914.3339702092. Note that the first 3 decimals are identical.

The spelling of 764389242 in words is "seven hundred sixty-four million, three hundred eighty-nine thousand, two hundred forty-two".