10509644 has 12 divisors (see below), whose sum is σ = 18503184. Its totient is φ = 5223024.

The previous prime is 10509619. The next prime is 10509649. The reversal of 10509644 is 44690501.

It is a super-2 number, since 2×10509644² = 220905234013472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10509649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199 + ... + 8534.

It is an arithmetic number, because the mean of its divisors is an integer number (1541932).

Almost surely, 2^10509644 is an apocalyptic number.

It is an amenable number.

10509644 is a deficient number, since it is larger than the sum of its proper divisors (7993540).

10509644 is a wasteful number, since it uses less digits than its factorization.

10509644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904 (or 15902 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 10509644 is about 3241.8581091713. The cubic root of 10509644 is about 219.0429778805.

The spelling of 10509644 in words is "ten million, five hundred nine thousand, six hundred forty-four".