42222004400 has 30 divisors (see below), whose sum is σ = 101438366532. Its totient is φ = 16888801600.

The previous prime is 42222004351. The next prime is 42222004403. The reversal of 42222004400 is 440022224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (42222004403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52777106 + ... + 52777905.

Almost surely, 2^42222004400 is an apocalyptic number.

42222004400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42222004400 is an abundant number, since it is smaller than the sum of its proper divisors (59216362132).

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

42222004400 is a wasteful number, since it uses less digits than its factorization.

42222004400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105555029 (or 105555018 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 42222004400 its reverse (440022224), we get a palindrome (42662026624).

The spelling of 42222004400 in words is "forty-two billion, two hundred twenty-two million, four thousand, four hundred".