22719136 has 96 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 9434880.

The previous prime is 22719113. The next prime is 22719143. The reversal of 22719136 is 63191722.

Its product of digits (4536) is a multiple of the sum of its prime factors (162).

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22719098 and 22719107.

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, 287545 + ... + 287623.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^22719136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22719136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26611200).

22719136 is an abundant number, since it is smaller than the sum of its proper divisors (30503264).

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

22719136 is a wasteful number, since it uses less digits than its factorization.

22719136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 154 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 22719136 is about 4766.4594826768. The cubic root of 22719136 is about 283.2243597844.

The spelling of 22719136 in words is "twenty-two million, seven hundred nineteen thousand, one hundred thirty-six".