22634437 has 4 divisors (see below), whose sum is σ = 25867936. Its totient is φ = 19400940.

The previous prime is 22634431. The next prime is 22634449. The reversal of 22634437 is 73443622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22634437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22634399 and 22634408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22634431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616739 + ... + 1616752.

It is an arithmetic number, because the mean of its divisors is an integer number (6466984).

Almost surely, 2^22634437 is an apocalyptic number.

It is an amenable number.

22634437 is a deficient number, since it is larger than the sum of its proper divisors (3233499).

22634437 is an equidigital number, since it uses as much as digits as its factorization.

22634437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233498.

The product of its digits is 24192, while the sum is 31.

The square root of 22634437 is about 4757.5662896065. The cubic root of 22634437 is about 282.8719594587.

The spelling of 22634437 in words is "twenty-two million, six hundred thirty-four thousand, four hundred thirty-seven".