22780870 has 32 divisors (see below), whose sum is σ = 47029248. Its totient is φ = 7783008.

The previous prime is 22780859. The next prime is 22780873. The reversal of 22780870 is 7808722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34887 + ... + 35533.

It is an arithmetic number, because the mean of its divisors is an integer number (1469664).

Almost surely, 2^22780870 is an apocalyptic number.

22780870 is an abundant number, since it is smaller than the sum of its proper divisors (24248378).

22780870 is a wasteful number, since it uses less digits than its factorization.

22780870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 22780870 is about 4772.9309653503. The cubic root of 22780870 is about 283.4806600201.

It can be divided in two parts, 2 and 2780870, that added together give a palindrome (2780872).

The spelling of 22780870 in words is "twenty-two million, seven hundred eighty thousand, eight hundred seventy".