1026204920 has 32 divisors (see below), whose sum is σ = 2486574720. Its totient is φ = 378906240.

The previous prime is 1026204919. The next prime is 1026204931. The reversal of 1026204920 is 294026201.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 1026204920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986216 + ... + 987255.

It is an arithmetic number, because the mean of its divisors is an integer number (77705460).

Almost surely, 2^1026204920 is an apocalyptic number.

1026204920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026204920 is an abundant number, since it is smaller than the sum of its proper divisors (1460369800).

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

1026204920 is a wasteful number, since it uses less digits than its factorization.

1026204920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973495 (or 1973491 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1026204920 is about 32034.4333491323. The cubic root of 1026204920 is about 1008.6597653281.

The spelling of 1026204920 in words is "one billion, twenty-six million, two hundred four thousand, nine hundred twenty".