22439634 has 32 divisors (see below), whose sum is σ = 51947520. Its totient is φ = 6329232.

The previous prime is 22439611. The next prime is 22439663. The reversal of 22439634 is 43693422.

It is a junction number, because it is equal to n+sod(n) for n = 22439595 and 22439604.

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 15 ways as a sum of consecutive naturals, for example, 64 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (1623360).

Almost surely, 2^22439634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22439634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25973760).

22439634 is an abundant number, since it is smaller than the sum of its proper divisors (29507886).

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

22439634 is a wasteful number, since it uses less digits than its factorization.

22439634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854.

The product of its digits is 31104, while the sum is 33.

The square root of 22439634 is about 4737.0490814430. The cubic root of 22439634 is about 282.0581088442.

The spelling of 22439634 in words is "twenty-two million, four hundred thirty-nine thousand, six hundred thirty-four".