1873664044 has 96 divisors (see below), whose sum is σ = 4066989696. Its totient is φ = 737095680.

The previous prime is 1873664017. The next prime is 1873664059. The reversal of 1873664044 is 4404663781.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5023042 + ... + 5023414.

It is an arithmetic number, because the mean of its divisors is an integer number (42364476).

Almost surely, 2^1873664044 is an apocalyptic number.

1873664044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1873664044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033494848).

1873664044 is an abundant number, since it is smaller than the sum of its proper divisors (2193325652).

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

1873664044 is a wasteful number, since it uses less digits than its factorization.

1873664044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 1873664044 is about 43285.8411492719. The cubic root of 1873664044 is about 1232.8131008415.

The spelling of 1873664044 in words is "one billion, eight hundred seventy-three million, six hundred sixty-four thousand, forty-four".