22642401 has 16 divisors (see below), whose sum is σ = 30801600. Its totient is φ = 14792448.

The previous prime is 22642393. The next prime is 22642421. The reversal of 22642401 is 10424622.

It is not a de Polignac number, because 22642401 - 2³ = 22642393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22642421) 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, 36270 + ... + 36888.

It is an arithmetic number, because the mean of its divisors is an integer number (1925100).

Almost surely, 2^22642401 is an apocalyptic number.

It is an amenable number.

22642401 is a deficient number, since it is larger than the sum of its proper divisors (8159199).

22642401 is a wasteful number, since it uses less digits than its factorization.

22642401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22642401 is about 4758.4031985531. The cubic root of 22642401 is about 282.9051320402.

The spelling of 22642401 in words is "twenty-two million, six hundred forty-two thousand, four hundred one".