22745016 has 128 divisors (see below), whose sum is σ = 73920000. Its totient is φ = 6477408.

The previous prime is 22744991. The next prime is 22745027. The reversal of 22745016 is 61054722.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73935 + ... + 74241.

It is an arithmetic number, because the mean of its divisors is an integer number (577500).

Almost surely, 2^22745016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22745016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36960000).

22745016 is an abundant number, since it is smaller than the sum of its proper divisors (51174984).

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

22745016 is a wasteful number, since it uses less digits than its factorization.

22745016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22745016 is about 4769.1735133040. The cubic root of 22745016 is about 283.3318618916.

Adding to 22745016 its reverse (61054722), we get a palindrome (83799738).

The spelling of 22745016 in words is "twenty-two million, seven hundred forty-five thousand, sixteen".