11818772 has 12 divisors (see below), whose sum is σ = 23637600. Its totient is φ = 5065176.

The previous prime is 11818739. The next prime is 11818787. The reversal of 11818772 is 27781811.

11818772 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211022 + ... + 211077.

It is an arithmetic number, because the mean of its divisors is an integer number (1969800).

Almost surely, 2^11818772 is an apocalyptic number.

It is an amenable number.

11818772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11818772 is a wasteful number, since it uses less digits than its factorization.

11818772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422110 (or 422108 counting only the distinct ones).

The product of its digits is 6272, while the sum is 35.

The square root of 11818772 is about 3437.8440918692. The cubic root of 11818772 is about 227.7844736657.

The spelling of 11818772 in words is "eleven million, eight hundred eighteen thousand, seven hundred seventy-two".