1042891086 has 16 divisors (see below), whose sum is σ = 2087265024. Its totient is φ = 347383224.

The previous prime is 1042891063. The next prime is 1042891103. The reversal of 1042891086 is 6801982401.

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, 52536 + ... + 69611.

It is an arithmetic number, because the mean of its divisors is an integer number (130454064).

Almost surely, 2^1042891086 is an apocalyptic number.

1042891086 is an abundant number, since it is smaller than the sum of its proper divisors (1044373938).

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

1042891086 is a wasteful number, since it uses less digits than its factorization.

1042891086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123575.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1042891086 is about 32293.8242702842. The cubic root of 1042891086 is about 1014.0973592468.

The spelling of 1042891086 in words is "one billion, forty-two million, eight hundred ninety-one thousand, eighty-six".