42918203 has 4 divisors (see below), whose sum is σ = 43400520. Its totient is φ = 42435888.

The previous prime is 42918199. The next prime is 42918263. The reversal of 42918203 is 30281924.

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 42918203 - 2² = 42918199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42918263) 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, 241025 + ... + 241202.

It is an arithmetic number, because the mean of its divisors is an integer number (10850130).

Almost surely, 2^42918203 is an apocalyptic number.

42918203 is a deficient number, since it is larger than the sum of its proper divisors (482317).

42918203 is an equidigital number, since it uses as much as digits as its factorization.

42918203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482316.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 42918203 is about 6551.1985926241. The cubic root of 42918203 is about 350.1175197196.

It can be divided in two parts, 429 and 18203, that multiplied together give a palindrome (7809087).

The spelling of 42918203 in words is "forty-two million, nine hundred eighteen thousand, two hundred three".