1880920 has 32 divisors (see below), whose sum is σ = 4309200. Its totient is φ = 738688.

The previous prime is 1880909. The next prime is 1880929. The reversal of 1880920 is 290881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962 + ... + 2758.

2^1880920 is an apocalyptic number.

1880920 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 1880920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154600).

1880920 is an abundant number, since it is smaller than the sum of its proper divisors (2428280).

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

1880920 is a wasteful number, since it uses less digits than its factorization.

1880920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1880920 is about 1371.4663685268. The cubic root of 1880920 is about 123.4402449317.

The spelling of 1880920 in words is "one million, eight hundred eighty thousand, nine hundred twenty".