40887403 has 4 divisors (see below), whose sum is σ = 41058720. Its totient is φ = 40716088.

The previous prime is 40887389. The next prime is 40887421. The reversal of 40887403 is 30478804.

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 40887403 - 2²⁵ = 7332971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40887493) 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, 85300 + ... + 85777.

It is an arithmetic number, because the mean of its divisors is an integer number (10264680).

Almost surely, 2^40887403 is an apocalyptic number.

40887403 is a deficient number, since it is larger than the sum of its proper divisors (171317).

40887403 is a wasteful number, since it uses less digits than its factorization.

40887403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171316.

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

The square root of 40887403 is about 6394.3258440589. The cubic root of 40887403 is about 344.5057769806.

It can be divided in two parts, 40887 and 403, that multiplied together give a palindrome (16477461).

The spelling of 40887403 in words is "forty million, eight hundred eighty-seven thousand, four hundred three".