426539193 has 4 divisors (see below), whose sum is σ = 568718928. Its totient is φ = 284359460.

The previous prime is 426539161. The next prime is 426539203. The reversal of 426539193 is 391935624.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426539193 - 2⁵ = 426539161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426539093) 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, 71089863 + ... + 71089868.

It is an arithmetic number, because the mean of its divisors is an integer number (142179732).

Almost surely, 2^426539193 is an apocalyptic number.

It is an amenable number.

426539193 is a deficient number, since it is larger than the sum of its proper divisors (142179735).

426539193 is a wasteful number, since it uses less digits than its factorization.

426539193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142179734.

The product of its digits is 174960, while the sum is 42.

The square root of 426539193 is about 20652.8253030911. The cubic root of 426539193 is about 752.7538423164.

The spelling of 426539193 in words is "four hundred twenty-six million, five hundred thirty-nine thousand, one hundred ninety-three".