431040442 has 8 divisors (see below), whose sum is σ = 738926496. Its totient is φ = 184731612.

The previous prime is 431040419. The next prime is 431040473. The reversal of 431040442 is 244040134.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15394288 + ... + 15394315.

It is an arithmetic number, because the mean of its divisors is an integer number (92365812).

Almost surely, 2^431040442 is an apocalyptic number.

431040442 is a deficient number, since it is larger than the sum of its proper divisors (307886054).

431040442 is a wasteful number, since it uses less digits than its factorization.

431040442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30788612.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 431040442 is about 20761.5134804763. The cubic root of 431040442 is about 755.3925079239.

Adding to 431040442 its reverse (244040134), we get a palindrome (675080576).

The spelling of 431040442 in words is "four hundred thirty-one million, forty thousand, four hundred forty-two".