22783780 has 24 divisors (see below), whose sum is σ = 48081600. Its totient is φ = 9068640.

The previous prime is 22783771. The next prime is 22783781. The reversal of 22783780 is 8738722.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22783781) 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 7 ways as a sum of consecutive naturals, for example, 1521 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (2003400).

Almost surely, 2^22783780 is an apocalyptic number.

22783780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22783780 is an abundant number, since it is smaller than the sum of its proper divisors (25297820).

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

22783780 is a wasteful number, since it uses less digits than its factorization.

22783780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 22783780 is about 4773.2357997484. The cubic root of 22783780 is about 283.4927299951.

The spelling of 22783780 in words is "twenty-two million, seven hundred eighty-three thousand, seven hundred eighty".