22782865404 has 96 divisors (see below), whose sum is σ = 59216661504. Its totient is φ = 6772538880.

The previous prime is 22782865387. The next prime is 22782865471. The reversal of 22782865404 is 40456828722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641497 + ... + 676079.

It is an arithmetic number, because the mean of its divisors is an integer number (616840224).

Almost surely, 2^22782865404 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 22782865404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29608330752).

22782865404 is an abundant number, since it is smaller than the sum of its proper divisors (36433796100).

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

22782865404 is a wasteful number, since it uses less digits than its factorization.

22782865404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34747 (or 34745 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

It can be divided in two parts, 2278 and 2865404, that added together give a palindrome (2867682).

The spelling of 22782865404 in words is "twenty-two billion, seven hundred eighty-two million, eight hundred sixty-five thousand, four hundred four".