22461438 has 16 divisors (see below), whose sum is σ = 45492480. Its totient is φ = 7392216.

The previous prime is 22461431. The next prime is 22461463. The reversal of 22461438 is 83416422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22461431) 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, 23220 + ... + 24167.

It is an arithmetic number, because the mean of its divisors is an integer number (2843280).

Almost surely, 2^22461438 is an apocalyptic number.

22461438 is an abundant number, since it is smaller than the sum of its proper divisors (23031042).

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

22461438 is a wasteful number, since it uses less digits than its factorization.

22461438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47471.

The product of its digits is 9216, while the sum is 30.

The square root of 22461438 is about 4739.3499554264. The cubic root of 22461438 is about 282.1494354102.

The spelling of 22461438 in words is "twenty-two million, four hundred sixty-one thousand, four hundred thirty-eight".