500432431 has 4 divisors (see below), whose sum is σ = 526771000. Its totient is φ = 474093864.

The previous prime is 500432423. The next prime is 500432461. The reversal of 500432431 is 134234005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134234005 = 5 ⋅26846801.

It is a cyclic number.

It is not a de Polignac number, because 500432431 - 2³ = 500432423 is a prime.

It is a super-2 number, since 2×500432431² = 500865235993139522, 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 (500432461) 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, 13169256 + ... + 13169293.

It is an arithmetic number, because the mean of its divisors is an integer number (131692750).

Almost surely, 2^500432431 is an apocalyptic number.

500432431 is a deficient number, since it is larger than the sum of its proper divisors (26338569).

500432431 is a wasteful number, since it uses less digits than its factorization.

500432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26338568.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 500432431 is about 22370.3471363321. The cubic root of 500432431 is about 793.9292738598.

Adding to 500432431 its reverse (134234005), we get a palindrome (634666436).

The spelling of 500432431 in words is "five hundred million, four hundred thirty-two thousand, four hundred thirty-one".