32440312 has 16 divisors (see below), whose sum is σ = 60900840. Its totient is φ = 16200096.

The previous prime is 32440297. The next prime is 32440313. The reversal of 32440312 is 21304423.

It is a self number, because there is not a number n which added to its sum of digits gives 32440312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440313) 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, 6103 + ... + 10105.

Almost surely, 2^32440312 is an apocalyptic number.

It is an amenable number.

32440312 is a deficient number, since it is larger than the sum of its proper divisors (28460528).

32440312 is a wasteful number, since it uses less digits than its factorization.

32440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 32440312 is about 5695.6397357979. The cubic root of 32440312 is about 318.9297316753.

Adding to 32440312 its reverse (21304423), we get a palindrome (53744735).

It can be divided in two parts, 324403 and 12, that added together give a triangular number (324415 = T₈₀₅).

The spelling of 32440312 in words is "thirty-two million, four hundred forty thousand, three hundred twelve".