11438816 has 24 divisors (see below), whose sum is σ = 22657320. Its totient is φ = 5684608.

The previous prime is 11438803. The next prime is 11438837. The reversal of 11438816 is 61883411.

It is a happy number.

It is a super-2 number, since 2×11438816² = 261693022963712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 4730 + ... + 6726.

It is an arithmetic number, because the mean of its divisors is an integer number (944055).

Almost surely, 2^11438816 is an apocalyptic number.

11438816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11438816 is a deficient number, since it is larger than the sum of its proper divisors (11218504).

11438816 is a wasteful number, since it uses less digits than its factorization.

11438816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2178 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 11438816 is about 3382.1318720594. The cubic root of 11438816 is about 225.3168605615.

The spelling of 11438816 in words is "eleven million, four hundred thirty-eight thousand, eight hundred sixteen".