22372461 has 12 divisors (see below), whose sum is σ = 32439420. Its totient is φ = 14857920.

The previous prime is 22372453. The next prime is 22372463. The reversal of 22372461 is 16427322.

It can be written as a sum of positive squares in 2 ways, for example, as 12916836 + 9455625 = 3594^2 + 3075^2 .

It is not a de Polignac number, because 22372461 - 2³ = 22372453 is a prime.

It is a super-2 number, since 2×22372461² = 1001054022393042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22372463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2200 + ... + 7041.

It is an arithmetic number, because the mean of its divisors is an integer number (2703285).

Almost surely, 2^22372461 is an apocalyptic number.

It is an amenable number.

22372461 is a deficient number, since it is larger than the sum of its proper divisors (10066959).

22372461 is a wasteful number, since it uses less digits than its factorization.

22372461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9516 (or 9513 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 22372461 is about 4729.9535938527. The cubic root of 22372461 is about 281.7763807424.

Adding to 22372461 its reverse (16427322), we get a palindrome (38799783).

The spelling of 22372461 in words is "twenty-two million, three hundred seventy-two thousand, four hundred sixty-one".