22572030 has 64 divisors (see below), whose sum is σ = 60254208. Its totient is φ = 5374080.

The previous prime is 22572029. The next prime is 22572031. The reversal of 22572030 is 3027522.

It is an interprime number because it is at equal distance from previous prime (22572029) and next prime (22572031).

It is a junction number, because it is equal to n+sod(n) for n = 22571988 and 22572006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11157 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (941472).

Almost surely, 2^22572030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22572030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30127104).

22572030 is an abundant number, since it is smaller than the sum of its proper divisors (37682178).

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

22572030 is a wasteful number, since it uses less digits than its factorization.

22572030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 22572030 is about 4751.0030519881. The cubic root of 22572030 is about 282.6117447609.

Adding to 22572030 its reverse (3027522), we get a palindrome (25599552).

The spelling of 22572030 in words is "twenty-two million, five hundred seventy-two thousand, thirty".