431328269 has 8 divisors (see below), whose sum is σ = 451509120. Its totient is φ = 411266416.

The previous prime is 431328239. The next prime is 431328283. The reversal of 431328269 is 962823134.

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 431328269 - 2²⁰ = 430279693 is a prime.

It is a super-2 number, since 2×431328269² = 372088151277072722, 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 (431328239) 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, 22289 + ... + 36870.

It is an arithmetic number, because the mean of its divisors is an integer number (56438640).

Almost surely, 2^431328269 is an apocalyptic number.

It is an amenable number.

431328269 is a deficient number, since it is larger than the sum of its proper divisors (20180851).

431328269 is a wasteful number, since it uses less digits than its factorization.

431328269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59499.

The product of its digits is 62208, while the sum is 38.

The square root of 431328269 is about 20768.4440678641. Note that the first 3 decimals coincide. The cubic root of 431328269 is about 755.5606081466.

The spelling of 431328269 in words is "four hundred thirty-one million, three hundred twenty-eight thousand, two hundred sixty-nine".