42041403 has 8 divisors (see below), whose sum is σ = 62283600. Its totient is φ = 28027584.

The previous prime is 42041399. The next prime is 42041411. The reversal of 42041403 is 30414024.

It is not a de Polignac number, because 42041403 - 2² = 42041399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42041603) 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, 778518 + ... + 778571.

It is an arithmetic number, because the mean of its divisors is an integer number (7785450).

Almost surely, 2^42041403 is an apocalyptic number.

42041403 is a deficient number, since it is larger than the sum of its proper divisors (20242197).

42041403 is a wasteful number, since it uses less digits than its factorization.

42041403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557098 (or 1557092 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42041403 is about 6483.9342223684. The cubic root of 42041403 is about 347.7168475571.

Adding to 42041403 its reverse (30414024), we get a palindrome (72455427).

The spelling of 42041403 in words is "forty-two million, forty-one thousand, four hundred three".