1089090492 has 24 divisors (see below), whose sum is σ = 2904241536. Its totient is φ = 311168688.

The previous prime is 1089090487. The next prime is 1089090511. The reversal of 1089090492 is 2940909801.

It is a super-2 number, since 2×1089090492² = 2372236199529604128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6482598 + ... + 6482765.

It is an arithmetic number, because the mean of its divisors is an integer number (121010064).

Almost surely, 2^1089090492 is an apocalyptic number.

1089090492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1089090492 is an abundant number, since it is smaller than the sum of its proper divisors (1815151044).

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

1089090492 is a wasteful number, since it uses less digits than its factorization.

1089090492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12965377 (or 12965375 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1089090492 is about 33001.3710624271. The cubic root of 1089090492 is about 1028.8561443185.

The spelling of 1089090492 in words is "one billion, eighty-nine million, ninety thousand, four hundred ninety-two".