40887043 has 4 divisors (see below), whose sum is σ = 40970808. Its totient is φ = 40803280.

The previous prime is 40887029. The next prime is 40887079. The reversal of 40887043 is 34078804.

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 40887043 - 2¹⁷ = 40755971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40987043) 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, 41146 + ... + 42127.

It is an arithmetic number, because the mean of its divisors is an integer number (10242702).

Almost surely, 2^40887043 is an apocalyptic number.

40887043 is a deficient number, since it is larger than the sum of its proper divisors (83765).

40887043 is an equidigital number, since it uses as much as digits as its factorization.

40887043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83764.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 40887043 is about 6394.2976940396. The cubic root of 40887043 is about 344.5047658913.

The spelling of 40887043 in words is "forty million, eight hundred eighty-seven thousand, forty-three".