22470372 has 60 divisors (see below), whose sum is σ = 59195136. Its totient is φ = 7432560.

The previous prime is 22470367. The next prime is 22470373. The reversal of 22470372 is 27307422.

22470372 is a `hidden beast` number, since 224 + 70 + 372 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22470373) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72097 + ... + 72407.

Almost surely, 2^22470372 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 22470372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29597568).

22470372 is an abundant number, since it is smaller than the sum of its proper divisors (36724764).

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

22470372 is a wasteful number, since it uses less digits than its factorization.

22470372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22470372 is about 4740.2923960448. The cubic root of 22470372 is about 282.1868386095.

Adding to 22470372 its reverse (27307422), we get a palindrome (49777794).

The spelling of 22470372 in words is "twenty-two million, four hundred seventy thousand, three hundred seventy-two".