22410421 has 4 divisors (see below), whose sum is σ = 24447744. Its totient is φ = 20373100.

The previous prime is 22410413. The next prime is 22410433. The reversal of 22410421 is 12401422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22410421 - 2³ = 22410413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22410395 and 22410404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22410461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018645 + ... + 1018666.

It is an arithmetic number, because the mean of its divisors is an integer number (6111936).

Almost surely, 2^22410421 is an apocalyptic number.

It is an amenable number.

22410421 is a deficient number, since it is larger than the sum of its proper divisors (2037323).

22410421 is a wasteful number, since it uses less digits than its factorization.

22410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037322.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 22410421 is about 4733.9646175273. The cubic root of 22410421 is about 281.9356567316.

Adding to 22410421 its reverse (12401422), we get a palindrome (34811843).

The spelling of 22410421 in words is "twenty-two million, four hundred ten thousand, four hundred twenty-one".