422000000 has 112 divisors (see below), whose sum is σ = 1055845860. Its totient is φ = 168000000.

The previous prime is 421999973. The next prime is 422000009. The reversal of 422000000 is 224.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422000009) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1999895 + ... + 2000105.

Almost surely, 2^422000000 is an apocalyptic number.

422000000 is a gapful number since it is divisible by the number (40) 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 422000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527922930).

422000000 is an abundant number, since it is smaller than the sum of its proper divisors (633845860).

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

422000000 is an frugal number, since it uses more digits than its factorization.

422000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 422000000 is about 20542.6385841741. The cubic root of 422000000 is about 750.0740667593.

Adding to 422000000 its reverse (224), we get a palindrome (422000224).

The spelling of 422000000 in words is "four hundred twenty-two million", and thus it is an aban number.