1090139764 has 12 divisors (see below), whose sum is σ = 2180279584. Its totient is φ = 467202744.

The previous prime is 1090139719. The next prime is 1090139777. The reversal of 1090139764 is 4679310901.

1090139764 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19466754 + ... + 19466809.

Almost surely, 2^1090139764 is an apocalyptic number.

1090139764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1090139764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1090139764 is a wasteful number, since it uses less digits than its factorization.

1090139764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38933574 (or 38933572 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1090139764 is about 33017.2646353389. The cubic root of 1090139764 is about 1029.1864515624.

The spelling of 1090139764 in words is "one billion, ninety million, one hundred thirty-nine thousand, seven hundred sixty-four".