13631424 has 28 divisors (see below), whose sum is σ = 36066984. Its totient is φ = 4543744.

The previous prime is 13631411. The next prime is 13631459. The reversal of 13631424 is 42413631.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13631394 and 13631403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35307 + ... + 35690.

Almost surely, 2^13631424 is an apocalyptic number.

It is an amenable number.

13631424 is an abundant number, since it is smaller than the sum of its proper divisors (22435560).

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

13631424 is an equidigital number, since it uses as much as digits as its factorization.

13631424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71012 (or 71002 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 13631424 is about 3692.0758388744. The cubic root of 13631424 is about 238.8803401864.

The spelling of 13631424 in words is "thirteen million, six hundred thirty-one thousand, four hundred twenty-four".