1928980 has 24 divisors (see below), whose sum is σ = 4146912. Its totient is φ = 753312.

The previous prime is 1928963. The next prime is 1928989. The reversal of 1928980 is 898291.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 1981.

It is an arithmetic number, because the mean of its divisors is an integer number (172788).

2^1928980 is an apocalyptic number.

1928980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928980 is an abundant number, since it is smaller than the sum of its proper divisors (2217932).

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

1928980 is a wasteful number, since it uses less digits than its factorization.

1928980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1928980 is about 1388.8772443956. The cubic root of 1928980 is about 124.4827693987.

The spelling of 1928980 in words is "one million, nine hundred twenty-eight thousand, nine hundred eighty".