11438644 has 24 divisors (see below), whose sum is σ = 23667840. Its totient is φ = 4732896.

The previous prime is 11438633. The next prime is 11438653. The reversal of 11438644 is 44683411.

It is a congruent number.

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, 6232 + ... + 7855.

It is an arithmetic number, because the mean of its divisors is an integer number (986160).

Almost surely, 2^11438644 is an apocalyptic number.

11438644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11438644 is an abundant number, since it is smaller than the sum of its proper divisors (12229196).

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

11438644 is a wasteful number, since it uses less digits than its factorization.

11438644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14127 (or 14125 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 11438644 is about 3382.1064442149. The cubic root of 11438644 is about 225.3157312285.

The spelling of 11438644 in words is "eleven million, four hundred thirty-eight thousand, six hundred forty-four".