22870782 has 64 divisors (see below), whose sum is σ = 56044800. Its totient is φ = 6855840.

The previous prime is 22870781. The next prime is 22870787. The reversal of 22870782 is 28707822.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22870781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82428 + ... + 82704.

It is an arithmetic number, because the mean of its divisors is an integer number (875700).

Almost surely, 2^22870782 is an apocalyptic number.

22870782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22870782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28022400).

22870782 is an abundant number, since it is smaller than the sum of its proper divisors (33174018).

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

22870782 is a wasteful number, since it uses less digits than its factorization.

22870782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 22870782 is about 4782.3406403141. The cubic root of 22870782 is about 283.8531195126.

The spelling of 22870782 in words is "twenty-two million, eight hundred seventy thousand, seven hundred eighty-two".