431820263 has 8 divisors (see below), whose sum is σ = 493880832. Its totient is φ = 369852696.

The previous prime is 431820251. The next prime is 431820269. The reversal of 431820263 is 362028134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431820263 - 2¹⁰ = 431819239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431820269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12995 + ... + 32132.

It is an arithmetic number, because the mean of its divisors is an integer number (61735104).

Almost surely, 2^431820263 is an apocalyptic number.

431820263 is a deficient number, since it is larger than the sum of its proper divisors (62060569).

431820263 is a wasteful number, since it uses less digits than its factorization.

431820263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46501.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 431820263 is about 20780.2854407729. The cubic root of 431820263 is about 755.8477753800.

Adding to 431820263 its reverse (362028134), we get a palindrome (793848397).

The spelling of 431820263 in words is "four hundred thirty-one million, eight hundred twenty thousand, two hundred sixty-three".