13663488 has 36 divisors (see below), whose sum is σ = 36366848. Its totient is φ = 4554240.

The previous prime is 13663487. The next prime is 13663493. The reversal of 13663488 is 88436631.

It is a super-2 number, since 2×13663488² = 373381808652288, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8128 + ... + 9663.

Almost surely, 2^13663488 is an apocalyptic number.

It is an amenable number.

13663488 is an abundant number, since it is smaller than the sum of its proper divisors (22703360).

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

13663488 is an equidigital number, since it uses as much as digits as its factorization.

13663488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17810 (or 17796 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 13663488 is about 3696.4155610537. The cubic root of 13663488 is about 239.0674925951.

It can be divided in two parts, 136 and 63488, that multiplied together give a palindrome (8634368).

The spelling of 13663488 in words is "thirteen million, six hundred sixty-three thousand, four hundred eighty-eight".