10664440 has 32 divisors (see below), whose sum is σ = 25408080. Its totient is φ = 4014592.

The previous prime is 10664371. The next prime is 10664449. The reversal of 10664440 is 4446601.

It is a super-2 number, since 2×10664440² = 227460561027200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10664449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7162 + ... + 8521.

Almost surely, 2^10664440 is an apocalyptic number.

10664440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10664440 is an abundant number, since it is smaller than the sum of its proper divisors (14743640).

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

10664440 is a wasteful number, since it uses less digits than its factorization.

10664440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711 (or 15707 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 10664440 is about 3265.6454185965. The cubic root of 10664440 is about 220.1131649201.

It can be divided in two parts, 106 and 64440, that added together give a palindrome (64546).

The spelling of 10664440 in words is "ten million, six hundred sixty-four thousand, four hundred forty".