1872120 has 32 divisors (see below), whose sum is σ = 5616720. Its totient is φ = 499200.

The previous prime is 1872113. The next prime is 1872137. The reversal of 1872120 is 212781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7681 + ... + 7920.

2^1872120 is an apocalyptic number.

1872120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1872120 is an abundant number, since it is smaller than the sum of its proper divisors (3744600).

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

1872120 is a wasteful number, since it uses less digits than its factorization.

1872120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15615 (or 15611 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1872120 is about 1368.2543623172. The cubic root of 1872120 is about 123.2474363347.

The spelling of 1872120 in words is "one million, eight hundred seventy-two thousand, one hundred twenty".