764213742 has 24 divisors (see below), whose sum is σ = 1712894040. Its totient is φ = 245953680.

The previous prime is 764213717. The next prime is 764213743. The reversal of 764213742 is 247312467.

764213742 is a `hidden beast` number, since 7 + 642 + 1 + 3 + 7 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 764213697 and 764213706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764213743) 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 11 ways as a sum of consecutive naturals, for example, 731484 + ... + 732527.

It is an arithmetic number, because the mean of its divisors is an integer number (71370585).

Almost surely, 2^764213742 is an apocalyptic number.

764213742 is an abundant number, since it is smaller than the sum of its proper divisors (948680298).

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

764213742 is a wasteful number, since it uses less digits than its factorization.

764213742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464048 (or 1464045 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 764213742 is about 27644.4161088636. The cubic root of 764213742 is about 914.2639893299.

The spelling of 764213742 in words is "seven hundred sixty-four million, two hundred thirteen thousand, seven hundred forty-two".