40287432 has 32 divisors (see below), whose sum is σ = 100900800. Its totient is φ = 13404864.

The previous prime is 40287427. The next prime is 40287437. The reversal of 40287432 is 23478204.

40287432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40287427) and next prime (40287437).

It is a self number, because there is not a number n which added to its sum of digits gives 40287432.

It is not an unprimeable number, because it can be changed into a prime (40287437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16294 + ... + 18602.

It is an arithmetic number, because the mean of its divisors is an integer number (3153150).

Almost surely, 2^40287432 is an apocalyptic number.

It is an amenable number.

40287432 is an abundant number, since it is smaller than the sum of its proper divisors (60613368).

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

40287432 is a wasteful number, since it uses less digits than its factorization.

40287432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 40287432 is about 6347.2381395375. The cubic root of 40287432 is about 342.8124046784.

The spelling of 40287432 in words is "forty million, two hundred eighty-seven thousand, four hundred thirty-two".