22401490 has 16 divisors (see below), whose sum is σ = 40383360. Its totient is φ = 8947120.

The previous prime is 22401487. The next prime is 22401493. The reversal of 22401490 is 9410422.

It is an interprime number because it is at equal distance from previous prime (22401487) and next prime (22401493).

It is not an unprimeable number, because it can be changed into a prime (22401493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7881 + ... + 10339.

It is an arithmetic number, because the mean of its divisors is an integer number (2523960).

Almost surely, 2^22401490 is an apocalyptic number.

22401490 is a deficient number, since it is larger than the sum of its proper divisors (17981870).

22401490 is a wasteful number, since it uses less digits than its factorization.

22401490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22401490 is about 4733.0212338421. The cubic root of 22401490 is about 281.8981994268.

The spelling of 22401490 in words is "twenty-two million, four hundred one thousand, four hundred ninety".