422022528 has 128 divisors (see below), whose sum is σ = 1311312000. Its totient is φ = 133249536.

The previous prime is 422022521. The next prime is 422022539. The reversal of 422022528 is 825220224.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422022521) 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, 62451 + ... + 68877.

It is an arithmetic number, because the mean of its divisors is an integer number (10244625).

Almost surely, 2^422022528 is an apocalyptic number.

422022528 is a gapful number since it is divisible by the number (48) 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 422022528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655656000).

422022528 is an abundant number, since it is smaller than the sum of its proper divisors (889289472).

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

422022528 is a wasteful number, since it uses less digits than its factorization.

422022528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469 (or 6451 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 422022528 is about 20543.1868997972. The cubic root of 422022528 is about 750.0874138114.

The spelling of 422022528 in words is "four hundred twenty-two million, twenty-two thousand, five hundred twenty-eight".