32222240 has 24 divisors (see below), whose sum is σ = 76125420. Its totient is φ = 12888832.

The previous prime is 32222231. The next prime is 32222249. The reversal of 32222240 is 4222223.

It is an interprime number because it is at equal distance from previous prime (32222231) and next prime (32222249).

It can be written as a sum of positive squares in 2 ways, for example, as 31047184 + 1175056 = 5572^2 + 1084^2 .

It is not an unprimeable number, because it can be changed into a prime (32222249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100535 + ... + 100854.

Almost surely, 2^32222240 is an apocalyptic number.

It is an amenable number.

32222240 is an abundant number, since it is smaller than the sum of its proper divisors (43903180).

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

32222240 is a wasteful number, since it uses less digits than its factorization.

32222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201404 (or 201396 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 32222240 is about 5676.4636878958. The cubic root of 32222240 is about 318.2134821673.

Subtracting from 32222240 its sum of digits (17), we obtain a palindrome (32222223).

Adding to 32222240 its reverse (4222223), we get a palindrome (36444463).

The spelling of 32222240 in words is "thirty-two million, two hundred twenty-two thousand, two hundred forty".