22374289620 has 144 divisors (see below), whose sum is σ = 68718358800. Its totient is φ = 5892096000.

The previous prime is 22374289471. The next prime is 22374289627. The reversal of 22374289620 is 2698247322.

It can be written as a sum of positive squares in 8 ways, for example, as 662856516 + 21711433104 = 25746^2 + 147348^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22374289627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8161450 + ... + 8164190.

It is an arithmetic number, because the mean of its divisors is an integer number (477210825).

Almost surely, 2^22374289620 is an apocalyptic number.

22374289620 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 22374289620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34359179400).

22374289620 is an abundant number, since it is smaller than the sum of its proper divisors (46344069180).

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

22374289620 is a wasteful number, since it uses less digits than its factorization.

22374289620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 22374289620 in words is "twenty-two billion, three hundred seventy-four million, two hundred eighty-nine thousand, six hundred twenty".