1020230992 has 40 divisors (see below), whose sum is σ = 2269899360. Its totient is φ = 439332480.

The previous prime is 1020230989. The next prime is 1020230993. The reversal of 1020230992 is 2990320201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020230992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020230993) 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, 149203 + ... + 155890.

It is an arithmetic number, because the mean of its divisors is an integer number (56747484).

Almost surely, 2^1020230992 is an apocalyptic number.

It is an amenable number.

1020230992 is an abundant number, since it is smaller than the sum of its proper divisors (1249668368).

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

1020230992 is a wasteful number, since it uses less digits than its factorization.

1020230992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305131 (or 305125 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1020230992 is about 31941.0549606615. The cubic root of 1020230992 is about 1006.6986913387.

The spelling of 1020230992 in words is "one billion, twenty million, two hundred thirty thousand, nine hundred ninety-two".