1046638464 has 32 divisors (see below), whose sum is σ = 2780134440. Its totient is φ = 348879360.

The previous prime is 1046638451. The next prime is 1046638511. The reversal of 1046638464 is 4648366401.

It is a happy number.

1046638464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362427 + ... + 1363194.

Almost surely, 2^1046638464 is an apocalyptic number.

It is an amenable number.

1046638464 is an abundant number, since it is smaller than the sum of its proper divisors (1733495976).

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

1046638464 is an equidigital number, since it uses as much as digits as its factorization.

1046638464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725638 (or 2725626 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 1046638464 is about 32351.7922841996. The cubic root of 1046638464 is about 1015.3105455328.

The spelling of 1046638464 in words is "one billion, forty-six million, six hundred thirty-eight thousand, four hundred sixty-four".