1880220 has 24 divisors (see below), whose sum is σ = 5264784. Its totient is φ = 501376.

The previous prime is 1880209. The next prime is 1880233. The reversal of 1880220 is 220881.

1880220 = 197² + 198² + ... + 236².

1880220 is nontrivially palindromic in base 11.

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, 15609 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (219366).

2^1880220 is an apocalyptic number.

1880220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1880220 is an abundant number, since it is smaller than the sum of its proper divisors (3384564).

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

1880220 is a wasteful number, since it uses less digits than its factorization.

1880220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31349 (or 31347 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1880220 is about 1371.2111434786. The cubic root of 1880220 is about 123.4249299276.

The spelling of 1880220 in words is "one million, eight hundred eighty thousand, two hundred twenty".