11866490 has 32 divisors (see below), whose sum is σ = 22325760. Its totient is φ = 4536000.

The previous prime is 11866487. The next prime is 11866549. The reversal of 11866490 is 9466811.

11866490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11866490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31121 + ... + 31499.

It is an arithmetic number, because the mean of its divisors is an integer number (697680).

Almost surely, 2^11866490 is an apocalyptic number.

11866490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11866490 is a deficient number, since it is larger than the sum of its proper divisors (10459270).

11866490 is a wasteful number, since it uses less digits than its factorization.

11866490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 11866490 is about 3444.7772061485. Note that the first 3 decimals coincide. The cubic root of 11866490 is about 228.0906200770.

The spelling of 11866490 in words is "eleven million, eight hundred sixty-six thousand, four hundred ninety".