22116534 has 32 divisors (see below), whose sum is σ = 49382784. Its totient is φ = 6545280.

The previous prime is 22116533. The next prime is 22116539. The reversal of 22116534 is 43561122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116533) 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, 1059 + ... + 6734.

It is an arithmetic number, because the mean of its divisors is an integer number (1543212).

Almost surely, 2^22116534 is an apocalyptic number.

22116534 is an abundant number, since it is smaller than the sum of its proper divisors (27266250).

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

22116534 is a wasteful number, since it uses less digits than its factorization.

22116534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852.

The product of its digits is 1440, while the sum is 24.

The square root of 22116534 is about 4702.8219188058. The cubic root of 22116534 is about 280.6978088138.

Adding to 22116534 its reverse (43561122), we get a palindrome (65677656).

The spelling of 22116534 in words is "twenty-two million, one hundred sixteen thousand, five hundred thirty-four".