42022332 has 72 divisors (see below), whose sum is σ = 116970672. Its totient is φ = 12719520.

The previous prime is 42022313. The next prime is 42022339. The reversal of 42022332 is 23322024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47478 + ... + 48354.

Almost surely, 2^42022332 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 42022332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58485336).

42022332 is an abundant number, since it is smaller than the sum of its proper divisors (74948340).

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

42022332 is a wasteful number, since it uses less digits than its factorization.

42022332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 42022332 is about 6482.4634206450. The cubic root of 42022332 is about 347.6642620067.

Adding to 42022332 its reverse (23322024), we get a palindrome (65344356).

The spelling of 42022332 in words is "forty-two million, twenty-two thousand, three hundred thirty-two".