42404003 has 8 divisors (see below), whose sum is σ = 43999200. Its totient is φ = 40817728.

The previous prime is 42403981. The next prime is 42404017. The reversal of 42404003 is 30040424.

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

It is a cyclic number.

It is not a de Polignac number, because 42404003 - 2²⁴ = 25626787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42404083) 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, 8375 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (5499900).

Almost surely, 2^42404003 is an apocalyptic number.

42404003 is a deficient number, since it is larger than the sum of its proper divisors (1595197).

42404003 is a wasteful number, since it uses less digits than its factorization.

42404003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42404003 is about 6511.8356091044. The cubic root of 42404003 is about 348.7136536249.

Adding to 42404003 its reverse (30040424), we get a palindrome (72444427).

The spelling of 42404003 in words is "forty-two million, four hundred four thousand, three".