11880638 has 48 divisors (see below), whose sum is σ = 23048064. Its totient is φ = 4541040.

The previous prime is 11880619. The next prime is 11880647. The reversal of 11880638 is 83608811.

It is a happy number.

It is a super-2 number, since 2×11880638² = 282299118574088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11880598 and 11880607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110981 + ... + 111087.

It is an arithmetic number, because the mean of its divisors is an integer number (480168).

Almost surely, 2^11880638 is an apocalyptic number.

11880638 is a deficient number, since it is larger than the sum of its proper divisors (11167426).

11880638 is a wasteful number, since it uses less digits than its factorization.

11880638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 11880638 is about 3446.8301379673. The cubic root of 11880638 is about 228.1812322252.

The spelling of 11880638 in words is "eleven million, eight hundred eighty thousand, six hundred thirty-eight".