32440222 has 4 divisors (see below), whose sum is σ = 48660336. Its totient is φ = 16220110.

The previous prime is 32440217. The next prime is 32440273. The reversal of 32440222 is 22204423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22204423 = 1303 ⋅17041.

It is a self number, because there is not a number n which added to its sum of digits gives 32440222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8110054 + ... + 8110057.

It is an arithmetic number, because the mean of its divisors is an integer number (12165084).

Almost surely, 2^32440222 is an apocalyptic number.

32440222 is a deficient number, since it is larger than the sum of its proper divisors (16220114).

32440222 is a wasteful number, since it uses less digits than its factorization.

32440222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16220113.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 32440222 is about 5695.6318350118. The cubic root of 32440222 is about 318.9294367367.

Adding to 32440222 its reverse (22204423), we get a palindrome (54644645).

The spelling of 32440222 in words is "thirty-two million, four hundred forty thousand, two hundred twenty-two".