32390226 has 64 divisors (see below), whose sum is σ = 81100800. Its totient is φ = 9493200.

The previous prime is 32390213. The next prime is 32390227. The reversal of 32390226 is 62209323.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 32390226.

It is not an unprimeable number, because it can be changed into a prime (32390227) 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, 17535 + ... + 19293.

It is an arithmetic number, because the mean of its divisors is an integer number (1267200).

Almost surely, 2^32390226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32390226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40550400).

32390226 is an abundant number, since it is smaller than the sum of its proper divisors (48710574).

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

32390226 is a wasteful number, since it uses less digits than its factorization.

32390226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 32390226 is about 5691.2411651590. The cubic root of 32390226 is about 318.7655106639.

Adding to 32390226 its reverse (62209323), we get a palindrome (94599549).

The spelling of 32390226 in words is "thirty-two million, three hundred ninety thousand, two hundred twenty-six".