1992288 has 24 divisors (see below), whose sum is σ = 5230008. Its totient is φ = 664064.

The previous prime is 1992269. The next prime is 1992299. The reversal of 1992288 is 8822991.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1992288² = 7938422949888, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10281 + ... + 10472.

It is an arithmetic number, because the mean of its divisors is an integer number (217917).

2^1992288 is an apocalyptic number.

It is an amenable number.

1992288 is an abundant number, since it is smaller than the sum of its proper divisors (3237720).

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

1992288 is a wasteful number, since it uses less digits than its factorization.

1992288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766 (or 20758 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1992288 is about 1411.4843250989. The cubic root of 1992288 is about 125.8299545409.

The spelling of 1992288 in words is "one million, nine hundred ninety-two thousand, two hundred eighty-eight".