764725422 has 16 divisors (see below), whose sum is σ = 1578788352. Its totient is φ = 246685560.

The previous prime is 764725387. The next prime is 764725427. The reversal of 764725422 is 224527467.

It is a happy number.

764725422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×764725422⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764725427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055528 + ... + 2055899.

It is an arithmetic number, because the mean of its divisors is an integer number (98674272).

Almost surely, 2^764725422 is an apocalyptic number.

764725422 is an abundant number, since it is smaller than the sum of its proper divisors (814062930).

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

764725422 is a wasteful number, since it uses less digits than its factorization.

764725422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111463.

The product of its digits is 188160, while the sum is 39.

The square root of 764725422 is about 27653.6692321290. The cubic root of 764725422 is about 914.4679925659.

The spelling of 764725422 in words is "seven hundred sixty-four million, seven hundred twenty-five thousand, four hundred twenty-two".