426432531 has 16 divisors (see below), whose sum is σ = 650394368. Its totient is φ = 243453600.

The previous prime is 426432529. The next prime is 426432533. The reversal of 426432531 is 135234624.

It is an interprime number because it is at equal distance from previous prime (426432529) and next prime (426432533).

It is not a de Polignac number, because 426432531 - 2¹ = 426432529 is a prime.

It is a super-2 number, since 2×426432531² = 363689406990131922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426432533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15921 + ... + 33261.

It is an arithmetic number, because the mean of its divisors is an integer number (40649648).

Almost surely, 2^426432531 is an apocalyptic number.

426432531 is a deficient number, since it is larger than the sum of its proper divisors (223961837).

426432531 is a wasteful number, since it uses less digits than its factorization.

426432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522.

The product of its digits is 17280, while the sum is 30.

The square root of 426432531 is about 20650.2428799276. The cubic root of 426432531 is about 752.6910915969.

The spelling of 426432531 in words is "four hundred twenty-six million, four hundred thirty-two thousand, five hundred thirty-one".