422040552 has 64 divisors (see below), whose sum is σ = 1084406400. Its totient is φ = 136796160.

The previous prime is 422040539. The next prime is 422040587. The reversal of 422040552 is 255040224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431488 + ... + 432464.

It is an arithmetic number, because the mean of its divisors is an integer number (16943850).

Almost surely, 2^422040552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422040552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542203200).

422040552 is an abundant number, since it is smaller than the sum of its proper divisors (662365848).

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

422040552 is a wasteful number, since it uses less digits than its factorization.

422040552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 422040552 is about 20543.6255807002. The cubic root of 422040552 is about 750.0980920589.

Adding to 422040552 its reverse (255040224), we get a palindrome (677080776).

The spelling of 422040552 in words is "four hundred twenty-two million, forty thousand, five hundred fifty-two".