22208007400 has 48 divisors (see below), whose sum is σ = 52040240640. Its totient is φ = 8813246400.

The previous prime is 22208007377. The next prime is 22208007403. The reversal of 22208007400 is 470080222.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22208007403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411766 + ... + 462565.

It is an arithmetic number, because the mean of its divisors is an integer number (1084171680).

Almost surely, 2^22208007400 is an apocalyptic number.

22208007400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22208007400 is an abundant number, since it is smaller than the sum of its proper divisors (29832233240).

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

22208007400 is a wasteful number, since it uses less digits than its factorization.

22208007400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874474 (or 874465 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 22208007400 its reverse (470080222), we get a palindrome (22678087622).

The spelling of 22208007400 in words is "twenty-two billion, two hundred eight million, seven thousand, four hundred".