426145234 has 4 divisors (see below), whose sum is σ = 639217854. Its totient is φ = 213072616.

The previous prime is 426145231. The next prime is 426145249. The reversal of 426145234 is 432541624.

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

It can be written as a sum of positive squares in only one way, i.e., 263965009 + 162180225 = 16247^2 + 12735^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 426145196 and 426145205.

It is not an unprimeable number, because it can be changed into a prime (426145231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106536307 + ... + 106536310.

Almost surely, 2^426145234 is an apocalyptic number.

426145234 is a deficient number, since it is larger than the sum of its proper divisors (213072620).

426145234 is a wasteful number, since it uses less digits than its factorization.

426145234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213072619.

The product of its digits is 23040, while the sum is 31.

The square root of 426145234 is about 20643.2854458780. The cubic root of 426145234 is about 752.5220187595.

Adding to 426145234 its reverse (432541624), we get a palindrome (858686858).

The spelling of 426145234 in words is "four hundred twenty-six million, one hundred forty-five thousand, two hundred thirty-four".