22871436 has 72 divisors (see below), whose sum is σ = 62876016. Its totient is φ = 6451200.

The previous prime is 22871423. The next prime is 22871437. The reversal of 22871436 is 63417822.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22871397 and 22871406.

It is not an unprimeable number, because it can be changed into a prime (22871437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56836 + ... + 57236.

It is an arithmetic number, because the mean of its divisors is an integer number (873278).

Almost surely, 2^22871436 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 22871436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31438008).

22871436 is an abundant number, since it is smaller than the sum of its proper divisors (40004580).

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

22871436 is a wasteful number, since it uses less digits than its factorization.

22871436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 510 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 22871436 is about 4782.4090163849. The cubic root of 22871436 is about 283.8558251215.

The spelling of 22871436 in words is "twenty-two million, eight hundred seventy-one thousand, four hundred thirty-six".