1872326220 has 96 divisors (see below), whose sum is σ = 5426319360. Its totient is φ = 481870080.

The previous prime is 1872326219. The next prime is 1872326227. The reversal of 1872326220 is 226232781.

It is not an unprimeable number, because it can be changed into a prime (1872326227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 815394 + ... + 817686.

It is an arithmetic number, because the mean of its divisors is an integer number (56524160).

Almost surely, 2^1872326220 is an apocalyptic number.

1872326220 is a gapful number since it is divisible by the number (10) 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 1872326220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2713159680).

1872326220 is an abundant number, since it is smaller than the sum of its proper divisors (3553993140).

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

1872326220 is a wasteful number, since it uses less digits than its factorization.

1872326220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1872326220 is about 43270.3850225532. The cubic root of 1872326220 is about 1232.5196153483.

The spelling of 1872326220 in words is "one billion, eight hundred seventy-two million, three hundred twenty-six thousand, two hundred twenty".