10509844 has 18 divisors (see below), whose sum is σ = 18672234. Its totient is φ = 5176080.

The previous prime is 10509841. The next prime is 10509871. The reversal of 10509844 is 44890501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 4892944 = 2370^2 + 2212^2 .

It is a super-2 number, since 2×10509844² = 220913641808672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10509841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24754 + ... + 25174.

Almost surely, 2^10509844 is an apocalyptic number.

It is an amenable number.

10509844 is a deficient number, since it is larger than the sum of its proper divisors (8162390).

10509844 is an equidigital number, since it uses as much as digits as its factorization.

10509844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 10509844 is about 3241.8889555319. Note that the first 3 decimals coincide. The cubic root of 10509844 is about 219.0443673445.

The spelling of 10509844 in words is "ten million, five hundred nine thousand, eight hundred forty-four".