22321434 has 16 divisors (see below), whose sum is σ = 45849888. Its totient is φ = 7239312.

The previous prime is 22321433. The next prime is 22321451. The reversal of 22321434 is 43412322.

It is a super-3 number, since 3×22321434³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22321434.

It is not an unprimeable number, because it can be changed into a prime (22321433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50052 + ... + 50495.

It is an arithmetic number, because the mean of its divisors is an integer number (2865618).

Almost surely, 2^22321434 is an apocalyptic number.

22321434 is an abundant number, since it is smaller than the sum of its proper divisors (23528454).

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

22321434 is a wasteful number, since it uses less digits than its factorization.

22321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100589.

The product of its digits is 1152, while the sum is 21.

The square root of 22321434 is about 4724.5564871213. The cubic root of 22321434 is about 281.5619929362.

Adding to 22321434 its reverse (43412322), we get a palindrome (65733756).

The spelling of 22321434 in words is "twenty-two million, three hundred twenty-one thousand, four hundred thirty-four".