11855286 has 24 divisors (see below), whose sum is σ = 25749984. Its totient is φ = 3942000.

The previous prime is 11855269. The next prime is 11855303. The reversal of 11855286 is 68255811.

It is an interprime number because it is at equal distance from previous prime (11855269) and next prime (11855303).

It is a super-2 number, since 2×11855286² = 281095612283592, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11855286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13080 + ... + 13956.

It is an arithmetic number, because the mean of its divisors is an integer number (1072916).

Almost surely, 2^11855286 is an apocalyptic number.

11855286 is an abundant number, since it is smaller than the sum of its proper divisors (13894698).

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

11855286 is a wasteful number, since it uses less digits than its factorization.

11855286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636 (or 1633 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 11855286 is about 3443.1505921176. The cubic root of 11855286 is about 228.0188119289.

The spelling of 11855286 in words is "eleven million, eight hundred fifty-five thousand, two hundred eighty-six".