22154734 has 16 divisors (see below), whose sum is σ = 38066400. Its totient is φ = 9473184.

The previous prime is 22154711. The next prime is 22154771. The reversal of 22154734 is 43745122.

It is a super-2 number, since 2×22154734² = 981664477221512, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5572 + ... + 8680.

It is an arithmetic number, because the mean of its divisors is an integer number (2379150).

Almost surely, 2^22154734 is an apocalyptic number.

22154734 is a deficient number, since it is larger than the sum of its proper divisors (15911666).

22154734 is a wasteful number, since it uses less digits than its factorization.

22154734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627.

The product of its digits is 6720, while the sum is 28.

The square root of 22154734 is about 4706.8815578895. The cubic root of 22154734 is about 280.8593243082.

Adding to 22154734 its reverse (43745122), we get a palindrome (65899856).

The spelling of 22154734 in words is "twenty-two million, one hundred fifty-four thousand, seven hundred thirty-four".