22461090 has 16 divisors (see below), whose sum is σ = 53906688. Its totient is φ = 5989616.

The previous prime is 22461083. The next prime is 22461091. The reversal of 22461090 is 9016422.

It is a self number, because there is not a number n which added to its sum of digits gives 22461090.

It is not an unprimeable number, because it can be changed into a prime (22461091) 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, 374322 + ... + 374381.

It is an arithmetic number, because the mean of its divisors is an integer number (3369168).

Almost surely, 2^22461090 is an apocalyptic number.

22461090 is an abundant number, since it is smaller than the sum of its proper divisors (31445598).

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

22461090 is a wasteful number, since it uses less digits than its factorization.

22461090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748713.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22461090 is about 4739.3132413885. The cubic root of 22461090 is about 282.1479782683.

The spelling of 22461090 in words is "twenty-two million, four hundred sixty-one thousand, ninety".