1022992 has 20 divisors (see below), whose sum is σ = 2099196. Its totient is φ = 481280.

The previous prime is 1022981. The next prime is 1023019. The reversal of 1022992 is 2992201.

It can be written as a sum of positive squares in 2 ways, for example, as 633616 + 389376 = 796^2 + 624^2 .

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, 1609 + ... + 2152.

2^1022992 is an apocalyptic number.

It is an amenable number.

1022992 is an abundant number, since it is smaller than the sum of its proper divisors (1076204).

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

1022992 is a wasteful number, since it uses less digits than its factorization.

1022992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1022992 is about 1011.4306698929. The cubic root of 1022992 is about 100.7606002060.

The spelling of 1022992 in words is "one million, twenty-two thousand, nine hundred ninety-two".