20222453400 has 96 divisors (see below), whose sum is σ = 63040161600. Its totient is φ = 5362499200.

The previous prime is 20222453399. The next prime is 20222453423. The reversal of 20222453400 is 435422202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13255 + ... + 201545.

It is an arithmetic number, because the mean of its divisors is an integer number (656668350).

Almost surely, 2^20222453400 is an apocalyptic number.

20222453400 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 20222453400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31520080800).

20222453400 is an abundant number, since it is smaller than the sum of its proper divisors (42817708200).

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

20222453400 is a wasteful number, since it uses less digits than its factorization.

20222453400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188489 (or 188480 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 20222453400 its reverse (435422202), we get a palindrome (20657875602).

The spelling of 20222453400 in words is "twenty billion, two hundred twenty-two million, four hundred fifty-three thousand, four hundred".