1872373818 has 16 divisors (see below), whose sum is σ = 4279711680. Its totient is φ = 534963936.

The previous prime is 1872373817. The next prime is 1872373823. The reversal of 1872373818 is 8183732781.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1872373813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22290123 + ... + 22290206.

It is an arithmetic number, because the mean of its divisors is an integer number (267481980).

Almost surely, 2^1872373818 is an apocalyptic number.

1872373818 is an abundant number, since it is smaller than the sum of its proper divisors (2407337862).

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

1872373818 is a wasteful number, since it uses less digits than its factorization.

1872373818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44580341.

The product of its digits is 451584, while the sum is 48.

The square root of 1872373818 is about 43270.9350257191. The cubic root of 1872373818 is about 1232.5300595702.

The spelling of 1872373818 in words is "one billion, eight hundred seventy-two million, three hundred seventy-three thousand, eight hundred eighteen".