1090621372 has 12 divisors (see below), whose sum is σ = 1940936760. Its totient is φ = 536068016.

The previous prime is 1090621369. The next prime is 1090621393. The reversal of 1090621372 is 2731260901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310403 + ... + 2310874.

It is an arithmetic number, because the mean of its divisors is an integer number (161744730).

Almost surely, 2^1090621372 is an apocalyptic number.

It is an amenable number.

1090621372 is a deficient number, since it is larger than the sum of its proper divisors (850315388).

1090621372 is a wasteful number, since it uses less digits than its factorization.

1090621372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621340 (or 4621338 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1090621372 is about 33024.5571052815. The cubic root of 1090621372 is about 1029.3379891513.

The spelling of 1090621372 in words is "one billion, ninety million, six hundred twenty-one thousand, three hundred seventy-two".