22770252 has 36 divisors (see below), whose sum is σ = 58965816. Its totient is φ = 7404480.

The previous prime is 22770239. The next prime is 22770269. The reversal of 22770252 is 25207722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22770252² = 1036968752287008, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6238 + ... + 9189.

Almost surely, 2^22770252 is an apocalyptic number.

It is an amenable number.

22770252 is an abundant number, since it is smaller than the sum of its proper divisors (36195564).

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

22770252 is a wasteful number, since it uses less digits than its factorization.

22770252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15478 (or 15473 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22770252 is about 4771.8185212768. The cubic root of 22770252 is about 283.4366104086.

Adding to 22770252 its reverse (25207722), we get a palindrome (47977974).

The spelling of 22770252 in words is "twenty-two million, seven hundred seventy thousand, two hundred fifty-two".