422022040 has 64 divisors (see below), whose sum is σ = 1055475360. Its totient is φ = 150558720.

The previous prime is 422022023. The next prime is 422022043. The reversal of 422022040 is 40220224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422022043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14272 + ... + 32368.

Almost surely, 2^422022040 is an apocalyptic number.

422022040 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 422022040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527737680).

422022040 is an abundant number, since it is smaller than the sum of its proper divisors (633453320).

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

422022040 is a wasteful number, since it uses less digits than its factorization.

422022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18172 (or 18168 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 422022040 is about 20543.1750223767. The cubic root of 422022040 is about 750.0871246935.

Adding to 422022040 its reverse (40220224), we get a palindrome (462242264).

The spelling of 422022040 in words is "four hundred twenty-two million, twenty-two thousand, forty".