426542203 has 4 divisors (see below), whose sum is σ = 427888080. Its totient is φ = 425196328.

The previous prime is 426542141. The next prime is 426542209. The reversal of 426542203 is 302245624.

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 426542203 - 2¹⁷ = 426411131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426542209) 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, 672463 + ... + 673096.

It is an arithmetic number, because the mean of its divisors is an integer number (106972020).

Almost surely, 2^426542203 is an apocalyptic number.

426542203 is a deficient number, since it is larger than the sum of its proper divisors (1345877).

426542203 is a wasteful number, since it uses less digits than its factorization.

426542203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345876.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 426542203 is about 20652.8981743483. The cubic root of 426542203 is about 752.7556129890.

Adding to 426542203 its reverse (302245624), we get a palindrome (728787827).

The spelling of 426542203 in words is "four hundred twenty-six million, five hundred forty-two thousand, two hundred three".