2173947504 has 20 divisors (see below), whose sum is σ = 5616031176. Its totient is φ = 724649152.

The previous prime is 2173947493. The next prime is 2173947527. The reversal of 2173947504 is 4057493712.

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, 22645239 + ... + 22645334.

Almost surely, 2^2173947504 is an apocalyptic number.

2173947504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2173947504 is an abundant number, since it is smaller than the sum of its proper divisors (3442083672).

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

2173947504 is a wasteful number, since it uses less digits than its factorization.

2173947504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45290584 (or 45290578 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 2173947504 is about 46625.6099584767. The cubic root of 2173947504 is about 1295.4371603400.

The spelling of 2173947504 in words is "two billion, one hundred seventy-three million, nine hundred forty-seven thousand, five hundred four".