22437412 has 6 divisors (see below), whose sum is σ = 39265478. Its totient is φ = 11218704.

The previous prime is 22437409. The next prime is 22437413. The reversal of 22437412 is 21473422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 665856 = 4666^2 + 816^2 .

It is not an unprimeable number, because it can be changed into a prime (22437413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2804673 + ... + 2804680.

Almost surely, 2^22437412 is an apocalyptic number.

It is an amenable number.

22437412 is a deficient number, since it is larger than the sum of its proper divisors (16828066).

22437412 is a wasteful number, since it uses less digits than its factorization.

22437412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609357 (or 5609355 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 22437412 is about 4736.8145414403. The cubic root of 22437412 is about 282.0487986239.

It can be divided in two parts, 224 and 37412, that added together give a square (37636 = 194²).

The spelling of 22437412 in words is "twenty-two million, four hundred thirty-seven thousand, four hundred twelve".