764449406 has 16 divisors (see below), whose sum is σ = 1323462240. Its totient is φ = 324376800.

The previous prime is 764449397. The next prime is 764449447. The reversal of 764449406 is 604944467.

764449406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268901 + ... + 271728.

It is an arithmetic number, because the mean of its divisors is an integer number (82716390).

Almost surely, 2^764449406 is an apocalyptic number.

764449406 is a deficient number, since it is larger than the sum of its proper divisors (559012834).

764449406 is a wasteful number, since it uses less digits than its factorization.

764449406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540739.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 764449406 is about 27648.6781962538. The cubic root of 764449406 is about 914.3579582260.

The spelling of 764449406 in words is "seven hundred sixty-four million, four hundred forty-nine thousand, four hundred six".