40233887 has 4 divisors (see below), whose sum is σ = 42351480. Its totient is φ = 38116296.

The previous prime is 40233859. The next prime is 40233889. The reversal of 40233887 is 78833204.

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

It is a cyclic number.

It is not a de Polignac number, because 40233887 - 2⁸ = 40233631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40233889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058768 + ... + 1058805.

It is an arithmetic number, because the mean of its divisors is an integer number (10587870).

Almost surely, 2^40233887 is an apocalyptic number.

40233887 is a deficient number, since it is larger than the sum of its proper divisors (2117593).

40233887 is a wasteful number, since it uses less digits than its factorization.

40233887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117592.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 40233887 is about 6343.0187608110. The cubic root of 40233887 is about 342.6604629320.

The spelling of 40233887 in words is "forty million, two hundred thirty-three thousand, eight hundred eighty-seven".