22130452 has 6 divisors (see below), whose sum is σ = 38728298. Its totient is φ = 11065224.

The previous prime is 22130441. The next prime is 22130483. The reversal of 22130452 is 25403122.

It can be written as a sum of positive squares in only one way, i.e., 19678096 + 2452356 = 4436^2 + 1566^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766303 + ... + 2766310.

Almost surely, 2^22130452 is an apocalyptic number.

It is an amenable number.

22130452 is a deficient number, since it is larger than the sum of its proper divisors (16597846).

22130452 is a wasteful number, since it uses less digits than its factorization.

22130452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532617 (or 5532615 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22130452 is about 4704.3014359201. The cubic root of 22130452 is about 280.7566777861.

Adding to 22130452 its reverse (25403122), we get a palindrome (47533574).

The spelling of 22130452 in words is "twenty-two million, one hundred thirty thousand, four hundred fifty-two".