431211442 has 8 divisors (see below), whose sum is σ = 646937856. Its totient is φ = 215565492.

The previous prime is 431211427. The next prime is 431211449. The reversal of 431211442 is 244112134.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (431211449) 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, 4198 + ... + 29665.

It is an arithmetic number, because the mean of its divisors is an integer number (80867232).

Almost surely, 2^431211442 is an apocalyptic number.

431211442 is a deficient number, since it is larger than the sum of its proper divisors (215726414).

431211442 is a wasteful number, since it uses less digits than its factorization.

431211442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40232.

The product of its digits is 768, while the sum is 22.

The square root of 431211442 is about 20765.6312689983. The cubic root of 431211442 is about 755.4923864416.

Adding to 431211442 its reverse (244112134), we get a palindrome (675323576).

The spelling of 431211442 in words is "four hundred thirty-one million, two hundred eleven thousand, four hundred forty-two".