40478503 has 8 divisors (see below), whose sum is σ = 43653008. Its totient is φ = 37312704.

The previous prime is 40478497. The next prime is 40478527. The reversal of 40478503 is 30587404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40478503 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 (40478533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10075 + ... + 13507.

It is an arithmetic number, because the mean of its divisors is an integer number (5456626).

Almost surely, 2^40478503 is an apocalyptic number.

40478503 is a deficient number, since it is larger than the sum of its proper divisors (3174505).

40478503 is a wasteful number, since it uses less digits than its factorization.

40478503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 40478503 is about 6362.2718426675. The cubic root of 40478503 is about 343.3535017111.

The spelling of 40478503 in words is "forty million, four hundred seventy-eight thousand, five hundred three".