22419043920 has 1920 divisors, whose sum is σ = 109193011200. Its totient is φ = 4138573824.

The previous prime is 22419043847. The next prime is 22419043921. The reversal of 22419043920 is 2934091422.

It is a super-2 number, since 2×22419043920² (a number of 22 digits) 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 (22419043921) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 773070466 + ... + 773070494.

It is an arithmetic number, because the mean of its divisors is an integer number (56871360).

Almost surely, 2^22419043920 is an apocalyptic number.

22419043920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22419043920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54596505600).

22419043920 is an abundant number, since it is smaller than the sum of its proper divisors (86773967280).

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

22419043920 is a wasteful number, since it uses less digits than its factorization.

22419043920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 22419043920 in words is "twenty-two billion, four hundred nineteen million, forty-three thousand, nine hundred twenty".