22496421 has 16 divisors (see below), whose sum is σ = 31408128. Its totient is φ = 14305200.

The previous prime is 22496363. The next prime is 22496447. The reversal of 22496421 is 12469422.

It is not a de Polignac number, because 22496421 - 2⁷ = 22496293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22496471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4900 + ... + 8306.

It is an arithmetic number, because the mean of its divisors is an integer number (1963008).

Almost surely, 2^22496421 is an apocalyptic number.

It is an amenable number.

22496421 is a deficient number, since it is larger than the sum of its proper divisors (8911707).

22496421 is a wasteful number, since it uses less digits than its factorization.

22496421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512.

The product of its digits is 6912, while the sum is 30.

The square root of 22496421 is about 4743.0392155242. The cubic root of 22496421 is about 282.2958391241.

The spelling of 22496421 in words is "twenty-two million, four hundred ninety-six thousand, four hundred twenty-one".