1928880 has 160 divisors (see below), whose sum is σ = 7142400. Its totient is φ = 476928.

The previous prime is 1928873. The next prime is 1928929. The reversal of 1928880 is 888291.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41017 + ... + 41063.

It is an arithmetic number, because the mean of its divisors is an integer number (44640).

2^1928880 is an apocalyptic number.

1928880 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 1928880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571200).

1928880 is an abundant number, since it is smaller than the sum of its proper divisors (5213520).

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

1928880 is a wasteful number, since it uses less digits than its factorization.

1928880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1928880 is about 1388.8412436272. The cubic root of 1928880 is about 124.4806182632.

The spelling of 1928880 in words is "one million, nine hundred twenty-eight thousand, eight hundred eighty".