431230042 has 16 divisors (see below), whose sum is σ = 699294240. Its totient is φ = 198745488.

The previous prime is 431230039. The next prime is 431230043. The reversal of 431230042 is 240032134.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (431230043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151948 + ... + 154759.

It is an arithmetic number, because the mean of its divisors is an integer number (43705890).

Almost surely, 2^431230042 is an apocalyptic number.

431230042 is a deficient number, since it is larger than the sum of its proper divisors (268064198).

431230042 is a wasteful number, since it uses less digits than its factorization.

431230042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306765.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 431230042 is about 20766.0791195642. The cubic root of 431230042 is about 755.5032488283.

Adding to 431230042 its reverse (240032134), we get a palindrome (671262176).

The spelling of 431230042 in words is "four hundred thirty-one million, two hundred thirty thousand, forty-two".