431434441 has 3 divisors (see below), whose sum is σ = 431455213. Its totient is φ = 431413670.

The previous prime is 431434433. The next prime is 431434447. The reversal of 431434441 is 144434134.

It is a happy number.

The square root of 431434441 is 20771.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 431434441 - 2³ = 431434433 is a prime.

It is a super-2 number, since 2×431434441² = 372271353761964962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431434447) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10386 + ... + 31156.

Almost surely, 2^431434441 is an apocalyptic number.

431434441 is the 20771-st square number.

431434441 is the 10386-th centered octagonal number.

It is an amenable number.

431434441 is a deficient number, since it is larger than the sum of its proper divisors (20772).

431434441 is an frugal number, since it uses more digits than its factorization.

431434441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41542 (or 20771 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The cubic root of 431434441 is about 755.6225971277.

Multiplying 431434441 by its product of digits (9216), we get a square (3976099808256 = 1994016²).

Adding to 431434441 its reverse (144434134), we get a palindrome (575868575).

The spelling of 431434441 in words is "four hundred thirty-one million, four hundred thirty-four thousand, four hundred forty-one".