11638488 has 32 divisors (see below), whose sum is σ = 30628800. Its totient is φ = 3675168.

The previous prime is 11638439. The next prime is 11638493. The reversal of 11638488 is 88483611.

11638488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11638488² = 270908805852288, 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12306 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (957150).

Almost surely, 2^11638488 is an apocalyptic number.

It is an amenable number.

11638488 is an abundant number, since it is smaller than the sum of its proper divisors (18990312).

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

11638488 is a wasteful number, since it uses less digits than its factorization.

11638488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25551 (or 25547 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 11638488 is about 3411.5228271257. The cubic root of 11638488 is about 226.6203230898.

The spelling of 11638488 in words is "eleven million, six hundred thirty-eight thousand, four hundred eighty-eight".