426375389 has 4 divisors (see below), whose sum is σ = 465136800. Its totient is φ = 387613980.

The previous prime is 426375361. The next prime is 426375413. The reversal of 426375389 is 983573624.

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 426375389 - 2²⁰ = 425326813 is a prime.

It is a super-5 number, since 5×426375389⁵ (a number of 44 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426375319) 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, 19380689 + ... + 19380710.

It is an arithmetic number, because the mean of its divisors is an integer number (116284200).

Almost surely, 2^426375389 is an apocalyptic number.

It is an amenable number.

426375389 is a deficient number, since it is larger than the sum of its proper divisors (38761411).

426375389 is a wasteful number, since it uses less digits than its factorization.

426375389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38761410.

The product of its digits is 1088640, while the sum is 47.

The square root of 426375389 is about 20648.8592663130. The cubic root of 426375389 is about 752.6574698689.

The spelling of 426375389 in words is "four hundred twenty-six million, three hundred seventy-five thousand, three hundred eighty-nine".