11918632 has 64 divisors (see below), whose sum is σ = 26749440. Its totient is φ = 4915200.

The previous prime is 11918629. The next prime is 11918633. The reversal of 11918632 is 23681911.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 11918594 and 11918603.

It is not an unprimeable number, because it can be changed into a prime (11918633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46248 + ... + 46504.

It is an arithmetic number, because the mean of its divisors is an integer number (417960).

Almost surely, 2^11918632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11918632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13374720).

11918632 is an abundant number, since it is smaller than the sum of its proper divisors (14830808).

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

11918632 is a wasteful number, since it uses less digits than its factorization.

11918632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 318 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 11918632 is about 3452.3371793613. The cubic root of 11918632 is about 228.4242127925.

The spelling of 11918632 in words is "eleven million, nine hundred eighteen thousand, six hundred thirty-two".