32290216 has 24 divisors (see below), whose sum is σ = 70429770. Its totient is φ = 13838496.

The previous prime is 32290207. The next prime is 32290217. The reversal of 32290216 is 61209223.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16370116 + 15920100 = 4046^2 + 3990^2 .

It is not an unprimeable number, because it can be changed into a prime (32290217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40795 + ... + 41578.

Almost surely, 2^32290216 is an apocalyptic number.

It is an amenable number.

32290216 is an abundant number, since it is smaller than the sum of its proper divisors (38139554).

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

32290216 is a wasteful number, since it uses less digits than its factorization.

32290216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82393 (or 82382 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 32290216 is about 5682.4480639950. The cubic root of 32290216 is about 318.4370925954.

Adding to 32290216 its reverse (61209223), we get a palindrome (93499439).

The spelling of 32290216 in words is "thirty-two million, two hundred ninety thousand, two hundred sixteen".