11438660 has 12 divisors (see below), whose sum is σ = 24021228. Its totient is φ = 4575456.

The previous prime is 11438653. The next prime is 11438663. The reversal of 11438660 is 6683411.

It can be written as a sum of positive squares in 2 ways, for example, as 7573504 + 3865156 = 2752^2 + 1966^2 .

It is not an unprimeable number, because it can be changed into a prime (11438663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285947 + ... + 285986.

It is an arithmetic number, because the mean of its divisors is an integer number (2001769).

Almost surely, 2^11438660 is an apocalyptic number.

11438660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11438660 is an abundant number, since it is smaller than the sum of its proper divisors (12582568).

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

11438660 is a wasteful number, since it uses less digits than its factorization.

11438660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571942 (or 571940 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 11438660 is about 3382.1088096039. The cubic root of 11438660 is about 225.3158362832.

The spelling of 11438660 in words is "eleven million, four hundred thirty-eight thousand, six hundred sixty".