32220032 has 96 divisors (see below), whose sum is σ = 74527320. Its totient is φ = 13787136.

The previous prime is 32219989. The next prime is 32220037. The reversal of 32220032 is 23002223.

It is a junction number, because it is equal to n+sod(n) for n = 32219989 and 32220016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32220037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480863 + ... + 480929.

Almost surely, 2^32220032 is an apocalyptic number.

32220032 is a gapful number since it is divisible by the number (32) 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 32220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37263660).

32220032 is an abundant number, since it is smaller than the sum of its proper divisors (42307288).

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

32220032 is a wasteful number, since it uses less digits than its factorization.

32220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 32220032 is about 5676.2691972809. The cubic root of 32220032 is about 318.2062135705.

Adding to 32220032 its reverse (23002223), we get a palindrome (55222255).

The spelling of 32220032 in words is "thirty-two million, two hundred twenty thousand, thirty-two".