22606738 has 48 divisors (see below), whose sum is σ = 43814304. Its totient is φ = 8648640.

The previous prime is 22606721. The next prime is 22606739. The reversal of 22606738 is 83760622.

It is a super-2 number, since 2×22606738² = 1022129206001288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22606739) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 72070 + ... + 72382.

It is an arithmetic number, because the mean of its divisors is an integer number (912798).

Almost surely, 2^22606738 is an apocalyptic number.

22606738 is a deficient number, since it is larger than the sum of its proper divisors (21207566).

22606738 is a wasteful number, since it uses less digits than its factorization.

22606738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 22606738 is about 4754.6543512647. The cubic root of 22606738 is about 282.7565237220.

It can be divided in two parts, 2260 and 6738, that added together give a palindrome (8998).

The spelling of 22606738 in words is "twenty-two million, six hundred six thousand, seven hundred thirty-eight".