22321356 has 48 divisors (see below), whose sum is σ = 53606784. Its totient is φ = 7226496.

The previous prime is 22321337. The next prime is 22321363. The reversal of 22321356 is 65312322.

It is a super-3 number, since 3×22321356³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72555 + ... + 72861.

It is an arithmetic number, because the mean of its divisors is an integer number (1116808).

Almost surely, 2^22321356 is an apocalyptic number.

It is an amenable number.

22321356 is an abundant number, since it is smaller than the sum of its proper divisors (31285428).

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

22321356 is a wasteful number, since it uses less digits than its factorization.

22321356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 468 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 22321356 is about 4724.5482323710. The cubic root of 22321356 is about 281.5616649725.

Adding to 22321356 its reverse (65312322), we get a palindrome (87633678).

The spelling of 22321356 in words is "twenty-two million, three hundred twenty-one thousand, three hundred fifty-six".