40032442 has 4 divisors (see below), whose sum is σ = 60048666. Its totient is φ = 20016220.

The previous prime is 40032403. The next prime is 40032451. The reversal of 40032442 is 24423004.

40032442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36108081 + 3924361 = 6009^2 + 1981^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10008109 + ... + 10008112.

Almost surely, 2^40032442 is an apocalyptic number.

40032442 is a deficient number, since it is larger than the sum of its proper divisors (20016224).

40032442 is a wasteful number, since it uses less digits than its factorization.

40032442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20016223.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40032442 is about 6327.1195658056. The cubic root of 40032442 is about 342.0876227499.

Adding to 40032442 its reverse (24423004), we get a palindrome (64455446).

The spelling of 40032442 in words is "forty million, thirty-two thousand, four hundred forty-two".