43240887 has 24 divisors (see below), whose sum is σ = 64351040. Its totient is φ = 27967680.

The previous prime is 43240871. The next prime is 43240889. The reversal of 43240887 is 78804234.

It is not a de Polignac number, because 43240887 - 2⁴ = 43240871 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 (43240889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42873 + ... + 43869.

Almost surely, 2^43240887 is an apocalyptic number.

43240887 is a deficient number, since it is larger than the sum of its proper divisors (21110153).

43240887 is a wasteful number, since it uses less digits than its factorization.

43240887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 43240887 is about 6575.7803339224. The cubic root of 43240887 is about 350.9927921183.

The spelling of 43240887 in words is "forty-three million, two hundred forty thousand, eight hundred eighty-seven".