32240240 has 20 divisors (see below), whose sum is σ = 74958744. Its totient is φ = 12896064.

The previous prime is 32240237. The next prime is 32240251. The reversal of 32240240 is 4204223.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201422 + ... + 201581.

Almost surely, 2^32240240 is an apocalyptic number.

It is an amenable number.

32240240 is an abundant number, since it is smaller than the sum of its proper divisors (42718504).

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

32240240 is a wasteful number, since it uses less digits than its factorization.

32240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403016 (or 403010 counting only the distinct ones).

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

The square root of 32240240 is about 5678.0489606906. The cubic root of 32240240 is about 318.2727246496.

Adding to 32240240 its reverse (4204223), we get a palindrome (36444463).

The spelling of 32240240 in words is "thirty-two million, two hundred forty thousand, two hundred forty".