764408742 has 16 divisors (see below), whose sum is σ = 1529089392. Its totient is φ = 254757600.

The previous prime is 764408737. The next prime is 764408747. The reversal of 764408742 is 247804467.

It is an interprime number because it is at equal distance from previous prime (764408737) and next prime (764408747).

It is a junction number, because it is equal to n+sod(n) for n = 764408694 and 764408703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764408747) 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 7 ways as a sum of consecutive naturals, for example, 55992 + ... + 68292.

It is an arithmetic number, because the mean of its divisors is an integer number (95568087).

Almost surely, 2^764408742 is an apocalyptic number.

764408742 is an abundant number, since it is smaller than the sum of its proper divisors (764680650).

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

764408742 is a wasteful number, since it uses less digits than its factorization.

764408742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663.

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 764408742 is about 27647.9428167811. The cubic root of 764408742 is about 914.3417452013.

The spelling of 764408742 in words is "seven hundred sixty-four million, four hundred eight thousand, seven hundred forty-two".