22419518940 has 576 divisors, whose sum is σ = 87581894400. Its totient is φ = 4514807808.

The previous prime is 22419518929. The next prime is 22419519007. The reversal of 22419518940 is 4981591422.

It is a happy number.

22419518940 is a `hidden beast` number, since 2 + 2 + 41 + 9 + 518 + 94 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 51776964 + ... + 51777396.

It is an arithmetic number, because the mean of its divisors is an integer number (152051900).

Almost surely, 2^22419518940 is an apocalyptic number.

22419518940 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 22419518940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43790947200).

22419518940 is an abundant number, since it is smaller than the sum of its proper divisors (65162375460).

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

22419518940 is a wasteful number, since it uses less digits than its factorization.

22419518940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 22419518940 in words is "twenty-two billion, four hundred nineteen million, five hundred eighteen thousand, nine hundred forty".