40288084 has 12 divisors (see below), whose sum is σ = 70954324. Its totient is φ = 20015424.

The previous prime is 40288081. The next prime is 40288097. The reversal of 40288084 is 48088204.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 10890000 = 5422^2 + 3300^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40288081) 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, 31449 + ... + 32704.

Almost surely, 2^40288084 is an apocalyptic number.

It is an amenable number.

40288084 is a deficient number, since it is larger than the sum of its proper divisors (30666240).

40288084 is a wasteful number, since it uses less digits than its factorization.

40288084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64314 (or 64312 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 40288084 is about 6347.2895002513. The cubic root of 40288084 is about 342.8142539936.

The spelling of 40288084 in words is "forty million, two hundred eighty-eight thousand, eighty-four".