426531243 has 8 divisors (see below), whose sum is σ = 568856128. Its totient is φ = 284280264.

The previous prime is 426531239. The next prime is 426531253. The reversal of 426531243 is 342135624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 426531243 - 2² = 426531239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426531243.

It is not an unprimeable number, because it can be changed into a prime (426531253) 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, 3205 + ... + 29382.

It is an arithmetic number, because the mean of its divisors is an integer number (71107016).

Almost surely, 2^426531243 is an apocalyptic number.

426531243 is a deficient number, since it is larger than the sum of its proper divisors (142324885).

426531243 is a wasteful number, since it uses less digits than its factorization.

426531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36953.

The product of its digits is 17280, while the sum is 30.

The square root of 426531243 is about 20652.6328345807. The cubic root of 426531243 is about 752.7491655830.

Adding to 426531243 its reverse (342135624), we get a palindrome (768666867).

The spelling of 426531243 in words is "four hundred twenty-six million, five hundred thirty-one thousand, two hundred forty-three".