426281823 has 24 divisors (see below), whose sum is σ = 674933376. Its totient is φ = 257115600.

The previous prime is 426281819. The next prime is 426281873. The reversal of 426281823 is 328182624.

426281823 is a `hidden beast` number, since 4 + 2 + 628 + 1 + 8 + 23 = 666.

It is not a de Polignac number, because 426281823 - 2² = 426281819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426281873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10686 + ... + 31092.

It is an arithmetic number, because the mean of its divisors is an integer number (28122224).

Almost surely, 2^426281823 is an apocalyptic number.

426281823 is a deficient number, since it is larger than the sum of its proper divisors (248651553).

426281823 is a wasteful number, since it uses less digits than its factorization.

426281823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20635 (or 20632 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 426281823 is about 20646.5934962647. The cubic root of 426281823 is about 752.6024101707.

The spelling of 426281823 in words is "four hundred twenty-six million, two hundred eighty-one thousand, eight hundred twenty-three".