11440290 has 16 divisors (see below), whose sum is σ = 27456768. Its totient is φ = 3050736.

The previous prime is 11440249. The next prime is 11440291. The reversal of 11440290 is 9204411.

It is not an unprimeable number, because it can be changed into a prime (11440291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190642 + ... + 190701.

It is an arithmetic number, because the mean of its divisors is an integer number (1716048).

Almost surely, 2^11440290 is an apocalyptic number.

11440290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11440290 is an abundant number, since it is smaller than the sum of its proper divisors (16016478).

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

11440290 is a wasteful number, since it uses less digits than its factorization.

11440290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381353.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11440290 is about 3382.3497749346. The cubic root of 11440290 is about 225.3265382177.

It can be divided in two parts, 114 and 40290, that added together give a palindrome (40404).

The spelling of 11440290 in words is "eleven million, four hundred forty thousand, two hundred ninety".