1639104764 has 12 divisors (see below), whose sum is σ = 3129200088. Its totient is φ = 745047600.

The previous prime is 1639104751. The next prime is 1639104767. The reversal of 1639104764 is 4674019361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1639104767) 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, 18626147 + ... + 18626234.

It is an arithmetic number, because the mean of its divisors is an integer number (260766674).

Almost surely, 2^1639104764 is an apocalyptic number.

It is an amenable number.

1639104764 is a deficient number, since it is larger than the sum of its proper divisors (1490095324).

1639104764 is a wasteful number, since it uses less digits than its factorization.

1639104764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37252396 (or 37252394 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1639104764 is about 40485.8588151468. The cubic root of 1639104764 is about 1179.0590900196.

The spelling of 1639104764 in words is "one billion, six hundred thirty-nine million, one hundred four thousand, seven hundred sixty-four".