1669940504 has 16 divisors (see below), whose sum is σ = 3147534720. Its totient is φ = 830597920.

The previous prime is 1669940497. The next prime is 1669940509. The reversal of 1669940504 is 4050499661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669940509) 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, 544919 + ... + 547974.

It is an arithmetic number, because the mean of its divisors is an integer number (196720920).

Almost surely, 2^1669940504 is an apocalyptic number.

It is an amenable number.

1669940504 is a deficient number, since it is larger than the sum of its proper divisors (1477594216).

1669940504 is a wasteful number, since it uses less digits than its factorization.

1669940504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093090 (or 1093086 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1669940504 is about 40864.9055302958. The cubic root of 1669940504 is about 1186.4069064191.

The spelling of 1669940504 in words is "one billion, six hundred sixty-nine million, nine hundred forty thousand, five hundred four".