42010403 has 4 divisors (see below), whose sum is σ = 42482520. Its totient is φ = 41538288.

The previous prime is 42010393. The next prime is 42010411. The reversal of 42010403 is 30401024.

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 42010403 - 2¹⁶ = 41944867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42010303) 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, 235925 + ... + 236102.

It is an arithmetic number, because the mean of its divisors is an integer number (10620630).

Almost surely, 2^42010403 is an apocalyptic number.

42010403 is a deficient number, since it is larger than the sum of its proper divisors (472117).

42010403 is an equidigital number, since it uses as much as digits as its factorization.

42010403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472116.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42010403 is about 6481.5432575892. The cubic root of 42010403 is about 347.6313614093.

Adding to 42010403 its reverse (30401024), we get a palindrome (72411427).

The spelling of 42010403 in words is "forty-two million, ten thousand, four hundred three".