11622240 has 144 divisors (see below), whose sum is σ = 45366048. Its totient is φ = 2654208.

The previous prime is 11622227. The next prime is 11622251. The reversal of 11622240 is 4222611.

11622240 is a `hidden beast` number, since 1 + 1 + 622 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 9504 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (315042).

Almost surely, 2^11622240 is an apocalyptic number.

11622240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11622240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22683024).

11622240 is an abundant number, since it is smaller than the sum of its proper divisors (33743808).

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

11622240 is a wasteful number, since it uses less digits than its factorization.

11622240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 11622240 is about 3409.1406541825. The cubic root of 11622240 is about 226.5148156325.

Adding to 11622240 its reverse (4222611), we get a palindrome (15844851).

The spelling of 11622240 in words is "eleven million, six hundred twenty-two thousand, two hundred forty".