13918824 has 32 divisors (see below), whose sum is σ = 38664000. Its totient is φ = 4639536.

The previous prime is 13918823. The next prime is 13918843. The reversal of 13918824 is 42881931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13918823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32004 + ... + 32435.

It is an arithmetic number, because the mean of its divisors is an integer number (1208250).

Almost surely, 2^13918824 is an apocalyptic number.

It is an amenable number.

13918824 is an abundant number, since it is smaller than the sum of its proper divisors (24745176).

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

13918824 is a wasteful number, since it uses less digits than its factorization.

13918824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64454 (or 64444 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 13918824 is about 3730.7940173641. The cubic root of 13918824 is about 240.5475000656.

The spelling of 13918824 in words is "thirteen million, nine hundred eighteen thousand, eight hundred twenty-four".