22413021 has 8 divisors (see below), whose sum is σ = 31641984. Its totient is φ = 14063040.

The previous prime is 22413007. The next prime is 22413023. The reversal of 22413021 is 12031422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22413021 - 2⁷ = 22412893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22413023) 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, 219685 + ... + 219786.

It is an arithmetic number, because the mean of its divisors is an integer number (3955248).

Almost surely, 2^22413021 is an apocalyptic number.

It is an amenable number.

22413021 is a deficient number, since it is larger than the sum of its proper divisors (9228963).

22413021 is a wasteful number, since it uses less digits than its factorization.

22413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439491.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22413021 is about 4734.2392208252. The cubic root of 22413021 is about 281.9465594624.

Adding to 22413021 its reverse (12031422), we get a palindrome (34444443).

The spelling of 22413021 in words is "twenty-two million, four hundred thirteen thousand, twenty-one".