10809642 has 16 divisors (see below), whose sum is σ = 21661920. Its totient is φ = 3596112.

The previous prime is 10809619. The next prime is 10809653. The reversal of 10809642 is 24690801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209 + ... + 5147.

It is an arithmetic number, because the mean of its divisors is an integer number (1353870).

Almost surely, 2^10809642 is an apocalyptic number.

10809642 is an abundant number, since it is smaller than the sum of its proper divisors (10852278).

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

10809642 is a wasteful number, since it uses less digits than its factorization.

10809642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 10809642 is about 3287.8020013377. The cubic root of 10809642 is about 221.1076507815.

The spelling of 10809642 in words is "ten million, eight hundred nine thousand, six hundred forty-two".