22412890 has 32 divisors (see below), whose sum is σ = 42197760. Its totient is φ = 8562624.

The previous prime is 22412869. The next prime is 22412893. The reversal of 22412890 is 9821422.

It is not an unprimeable number, because it can be changed into a prime (22412893) 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, 19656 + ... + 20764.

It is an arithmetic number, because the mean of its divisors is an integer number (1318680).

Almost surely, 2^22412890 is an apocalyptic number.

22412890 is a deficient number, since it is larger than the sum of its proper divisors (19784870).

22412890 is a wasteful number, since it uses less digits than its factorization.

22412890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

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

The square root of 22412890 is about 4734.2253854247. The cubic root of 22412890 is about 281.9460101527.

The spelling of 22412890 in words is "twenty-two million, four hundred twelve thousand, eight hundred ninety".