22354472000 has 448 divisors, whose sum is σ = 66542960640. Its totient is φ = 7278336000.

The previous prime is 22354471981. The next prime is 22354472009. The reversal of 22354472000 is 27445322.

It is a tau number, because it is divible by the number of its divisors (448).

It is not an unprimeable number, because it can be changed into a prime (22354472009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137143919 + ... + 137144081.

Almost surely, 2^22354472000 is an apocalyptic number.

22354472000 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 22354472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33271480320).

22354472000 is an abundant number, since it is smaller than the sum of its proper divisors (44188488640).

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

22354472000 is a wasteful number, since it uses less digits than its factorization.

22354472000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The spelling of 22354472000 in words is "twenty-two billion, three hundred fifty-four million, four hundred seventy-two thousand".