1880172 has 60 divisors (see below), whose sum is σ = 5624080. Its totient is φ = 536544.

The previous prime is 1880167. The next prime is 1880189. The reversal of 1880172 is 2710881.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1854 + ... + 2682.

2^1880172 is an apocalyptic number.

1880172 is a gapful number since it is divisible by the number (12) 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 1880172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812040).

1880172 is an abundant number, since it is smaller than the sum of its proper divisors (3743908).

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

1880172 is a wasteful number, since it uses less digits than its factorization.

1880172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1880172 is about 1371.1936405920. The cubic root of 1880172 is about 123.4238796166.

The spelling of 1880172 in words is "one million, eight hundred eighty thousand, one hundred seventy-two".