22013030400 has 312 divisors, whose sum is σ = 73470517824. Its totient is φ = 5814681600.

The previous prime is 22013030381. The next prime is 22013030401. The reversal of 22013030400 is 403031022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22013030400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013030401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40242927 + ... + 40243473.

Almost surely, 2^22013030400 is an apocalyptic number.

22013030400 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 22013030400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36735258912).

22013030400 is an abundant number, since it is smaller than the sum of its proper divisors (51457487424).

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

22013030400 is a wasteful number, since it uses less digits than its factorization.

22013030400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22013030400 its reverse (403031022), we get a palindrome (22416061422).

The spelling of 22013030400 in words is "twenty-two billion, thirteen million, thirty thousand, four hundred".