42403203 has 16 divisors (see below), whose sum is σ = 64282240. Its totient is φ = 27610632.

The previous prime is 42403189. The next prime is 42403213. The reversal of 42403203 is 30230424.

It is not a de Polignac number, because 42403203 - 2⁶ = 42403139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42403213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17101 + ... + 19422.

It is an arithmetic number, because the mean of its divisors is an integer number (4017640).

Almost surely, 2^42403203 is an apocalyptic number.

42403203 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42403203 is a deficient number, since it is larger than the sum of its proper divisors (21879037).

42403203 is a wasteful number, since it uses less digits than its factorization.

42403203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36575 (or 36569 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 42403203 is about 6511.7741822026. The cubic root of 42403203 is about 348.7114606505.

Adding to 42403203 its reverse (30230424), we get a palindrome (72633627).

The spelling of 42403203 in words is "forty-two million, four hundred three thousand, two hundred three".