32222442 has 64 divisors (see below), whose sum is σ = 78336000. Its totient is φ = 8631360.

The previous prime is 32222431. The next prime is 32222447. The reversal of 32222442 is 24422223.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (32222447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118767 + ... + 119037.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^32222442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32222442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39168000).

32222442 is an abundant number, since it is smaller than the sum of its proper divisors (46113558).

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

32222442 is a wasteful number, since it uses less digits than its factorization.

32222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its digits is 1536, while the sum is 21.

The square root of 32222442 is about 5676.4814806357. The cubic root of 32222442 is about 318.2141471220.

Adding to 32222442 its reverse (24422223), we get a palindrome (56644665).

The spelling of 32222442 in words is "thirty-two million, two hundred twenty-two thousand, four hundred forty-two".