426266237 has 4 divisors (see below), whose sum is σ = 426350076. Its totient is φ = 426182400.

The previous prime is 426266219. The next prime is 426266257. The reversal of 426266237 is 732662624.

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 372258436 + 54007801 = 19294^2 + 7349^2 .

It is a cyclic number.

It is not a de Polignac number, because 426266237 - 2⁸ = 426265981 is a prime.

It is a super-2 number, since 2×426266237² = 363405809612280338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426266237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426266207) 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, 33764 + ... + 44637.

It is an arithmetic number, because the mean of its divisors is an integer number (106587519).

Almost surely, 2^426266237 is an apocalyptic number.

It is an amenable number.

426266237 is a deficient number, since it is larger than the sum of its proper divisors (83839).

426266237 is an equidigital number, since it uses as much as digits as its factorization.

426266237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83838.

The product of its digits is 145152, while the sum is 38.

The square root of 426266237 is about 20646.2160455615. The cubic root of 426266237 is about 752.5932376753.

The spelling of 426266237 in words is "four hundred twenty-six million, two hundred sixty-six thousand, two hundred thirty-seven".