10644980 has 12 divisors (see below), whose sum is σ = 22354500. Its totient is φ = 4257984.

The previous prime is 10644971. The next prime is 10645039. The reversal of 10644980 is 8944601.

It can be written as a sum of positive squares in 2 ways, for example, as 6091024 + 4553956 = 2468^2 + 2134^2 .

It is a super-2 number, since 2×10644980² = 226631198400800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 266105 + ... + 266144.

It is an arithmetic number, because the mean of its divisors is an integer number (1862875).

Almost surely, 2^10644980 is an apocalyptic number.

10644980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10644980 is an abundant number, since it is smaller than the sum of its proper divisors (11709520).

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

10644980 is a wasteful number, since it uses less digits than its factorization.

10644980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532258 (or 532256 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 10644980 is about 3262.6645552370. The cubic root of 10644980 is about 219.9791991353.

The spelling of 10644980 in words is "ten million, six hundred forty-four thousand, nine hundred eighty".