426418213 has 4 divisors (see below), whose sum is σ = 459219628. Its totient is φ = 393616800.

The previous prime is 426418211. The next prime is 426418241. The reversal of 426418213 is 312814624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79602084 + 346816129 = 8922^2 + 18623^2 .

It is a cyclic number.

It is not a de Polignac number, because 426418213 - 2¹ = 426418211 is a prime.

It is a super-2 number, since 2×426418213² = 363664984756226738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426418211) 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, 16400688 + ... + 16400713.

It is an arithmetic number, because the mean of its divisors is an integer number (114804907).

Almost surely, 2^426418213 is an apocalyptic number.

It is an amenable number.

426418213 is a deficient number, since it is larger than the sum of its proper divisors (32801415).

426418213 is a wasteful number, since it uses less digits than its factorization.

426418213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32801414.

The product of its digits is 9216, while the sum is 31.

The square root of 426418213 is about 20649.8961982863. The cubic root of 426418213 is about 752.6826673243.

The spelling of 426418213 in words is "four hundred twenty-six million, four hundred eighteen thousand, two hundred thirteen".