22427004 has 12 divisors (see below), whose sum is σ = 52329704. Its totient is φ = 7475664.

The previous prime is 22426993. The next prime is 22427039. The reversal of 22427004 is 40072422.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934447 + ... + 934470.

Almost surely, 2^22427004 is an apocalyptic number.

It is an amenable number.

22427004 is an abundant number, since it is smaller than the sum of its proper divisors (29902700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22427004 is a wasteful number, since it uses less digits than its factorization.

22427004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868924 (or 1868922 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22427004 is about 4735.7157853908. The cubic root of 22427004 is about 282.0051807307.

Adding to 22427004 its reverse (40072422), we get a palindrome (62499426).

The spelling of 22427004 in words is "twenty-two million, four hundred twenty-seven thousand, four".