1872320 has 28 divisors (see below), whose sum is σ = 4459224. Its totient is φ = 748800.

The previous prime is 1872319. The next prime is 1872323. The reversal of 1872320 is 232781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872323) 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, 2606 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (159258).

2^1872320 is an apocalyptic number.

1872320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1872320 is an abundant number, since it is smaller than the sum of its proper divisors (2586904).

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

1872320 is an equidigital number, since it uses as much as digits as its factorization.

1872320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1872320 is about 1368.3274461912. The cubic root of 1872320 is about 123.2518250508.

The spelling of 1872320 in words is "one million, eight hundred seventy-two thousand, three hundred twenty".