1026791880 has 64 divisors (see below), whose sum is σ = 3082847040. Its totient is φ = 273591552.

The previous prime is 1026791879. The next prime is 1026791897. The reversal of 1026791880 is 881976201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193827 + ... + 199053.

It is an arithmetic number, because the mean of its divisors is an integer number (48169485).

Almost surely, 2^1026791880 is an apocalyptic number.

1026791880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026791880 is an abundant number, since it is smaller than the sum of its proper divisors (2056055160).

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

1026791880 is a wasteful number, since it uses less digits than its factorization.

1026791880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6878 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 1026791880 is about 32043.5934314490. The cubic root of 1026791880 is about 1008.8520368985.

The spelling of 1026791880 in words is "one billion, twenty-six million, seven hundred ninety-one thousand, eight hundred eighty".