426943431 has 12 divisors (see below), whose sum is σ = 631038408. Its totient is φ = 278009424.

The previous prime is 426943397. The next prime is 426943459. The reversal of 426943431 is 134349624.

It is a happy number.

It is not a de Polignac number, because 426943431 - 2⁶ = 426943367 is a prime.

It is a super-2 number, since 2×426943431² = 364561386548103522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426943031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 551220 + ... + 551993.

It is an arithmetic number, because the mean of its divisors is an integer number (52586534).

Almost surely, 2^426943431 is an apocalyptic number.

426943431 is a deficient number, since it is larger than the sum of its proper divisors (204094977).

426943431 is a wasteful number, since it uses less digits than its factorization.

426943431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103262 (or 1103259 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 426943431 is about 20662.6094915429. The cubic root of 426943431 is about 752.9915661770.

The spelling of 426943431 in words is "four hundred twenty-six million, nine hundred forty-three thousand, four hundred thirty-one".