22464270 has 128 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 5443200.

The previous prime is 22464227. The next prime is 22464271. The reversal of 22464270 is 7246422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22464271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148695 + ... + 148845.

It is an arithmetic number, because the mean of its divisors is an integer number (513000).

Almost surely, 2^22464270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22464270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32832000).

22464270 is an abundant number, since it is smaller than the sum of its proper divisors (43199730).

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

22464270 is a wasteful number, since it uses less digits than its factorization.

22464270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22464270 is about 4739.6487211607. The cubic root of 22464270 is about 282.1612929713.

The spelling of 22464270 in words is "twenty-two million, four hundred sixty-four thousand, two hundred seventy".