22108734 has 32 divisors (see below), whose sum is σ = 49301280. Its totient is φ = 7344000.

The previous prime is 22108733. The next prime is 22108763. The reversal of 22108734 is 43780122.

It is a super-2 number, since 2×22108734² = 977592238165512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22108698 and 22108707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22108733) 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 15 ways as a sum of consecutive naturals, for example, 21144 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (1540665).

Almost surely, 2^22108734 is an apocalyptic number.

22108734 is an abundant number, since it is smaller than the sum of its proper divisors (27192546).

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

22108734 is a wasteful number, since it uses less digits than its factorization.

22108734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22108734 is about 4701.9925563531. The cubic root of 22108734 is about 280.6648063499.

Adding to 22108734 its reverse (43780122), we get a palindrome (65888856).

The spelling of 22108734 in words is "twenty-two million, one hundred eight thousand, seven hundred thirty-four".