1634329904 has 20 divisors (see below), whose sum is σ = 3172077480. Its totient is φ = 815729280.

The previous prime is 1634329903. The next prime is 1634329933. The reversal of 1634329904 is 4099234361.

It is not an unprimeable number, because it can be changed into a prime (1634329903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80309 + ... + 98580.

It is an arithmetic number, because the mean of its divisors is an integer number (158603874).

Almost surely, 2^1634329904 is an apocalyptic number.

It is an amenable number.

1634329904 is a deficient number, since it is larger than the sum of its proper divisors (1537747576).

1634329904 is a wasteful number, since it uses less digits than its factorization.

1634329904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179468 (or 179462 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 1634329904 is about 40426.8463276571. The cubic root of 1634329904 is about 1177.9130746620.

The spelling of 1634329904 in words is "one billion, six hundred thirty-four million, three hundred twenty-nine thousand, nine hundred four".