22894021 has 8 divisors (see below), whose sum is σ = 24019200. Its totient is φ = 21791280.

The previous prime is 22894013. The next prime is 22894043. The reversal of 22894021 is 12049822.

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

It is a cyclic number.

It is not a de Polignac number, because 22894021 - 2³ = 22894013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22894621) 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, 3501 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (3002400).

Almost surely, 2^22894021 is an apocalyptic number.

It is an amenable number.

22894021 is a deficient number, since it is larger than the sum of its proper divisors (1125179).

22894021 is a wasteful number, since it uses less digits than its factorization.

22894021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 22894021 is about 4784.7696914272. The cubic root of 22894021 is about 283.9492280130.

It can be divided in two parts, 228 and 94021, that added together give a palindrome (94249).

The spelling of 22894021 in words is "twenty-two million, eight hundred ninety-four thousand, twenty-one".