426267238 has 4 divisors (see below), whose sum is σ = 639400860. Its totient is φ = 213133618.

The previous prime is 426267187. The next prime is 426267239. The reversal of 426267238 is 832762624.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 426267238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426267239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106566808 + ... + 106566811.

It is an arithmetic number, because the mean of its divisors is an integer number (159850215).

Almost surely, 2^426267238 is an apocalyptic number.

426267238 is a deficient number, since it is larger than the sum of its proper divisors (213133622).

426267238 is a wasteful number, since it uses less digits than its factorization.

426267238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213133621.

The product of its digits is 193536, while the sum is 40.

The square root of 426267238 is about 20646.2402872775. The cubic root of 426267238 is about 752.5938267792.

The spelling of 426267238 in words is "four hundred twenty-six million, two hundred sixty-seven thousand, two hundred thirty-eight".