22451264 has 28 divisors (see below), whose sum is σ = 48603408. Its totient is φ = 10204800.

The previous prime is 22451257. The next prime is 22451269. The reversal of 22451264 is 46215422.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22451269) 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, 15242 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (1735836).

Almost surely, 2^22451264 is an apocalyptic number.

It is an amenable number.

22451264 is an abundant number, since it is smaller than the sum of its proper divisors (26152144).

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

22451264 is a wasteful number, since it uses less digits than its factorization.

22451264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31914 (or 31904 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 22451264 is about 4738.2764799028. The cubic root of 22451264 is about 282.1068287306.

Adding to 22451264 its reverse (46215422), we get a palindrome (68666686).

The spelling of 22451264 in words is "twenty-two million, four hundred fifty-one thousand, two hundred sixty-four".