22787352 has 96 divisors (see below), whose sum is σ = 73666800. Its totient is φ = 6507648.

The previous prime is 22787341. The next prime is 22787353. The reversal of 22787352 is 25378722.

It is a happy number.

22787352 is a `hidden beast` number, since 227 + 87 + 352 = 666.

It is a super-2 number, since 2×22787352² = 1038526822343808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22787353) 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 23 ways as a sum of consecutive naturals, for example, 9508 + ... + 11660.

Almost surely, 2^22787352 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 22787352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36833400).

22787352 is an abundant number, since it is smaller than the sum of its proper divisors (50879448).

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

22787352 is a wasteful number, since it uses less digits than its factorization.

22787352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2165 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 22787352 is about 4773.6099547408. The cubic root of 22787352 is about 283.5075443808.

The spelling of 22787352 in words is "twenty-two million, seven hundred eighty-seven thousand, three hundred fifty-two".