431022542 has 4 divisors (see below), whose sum is σ = 646533816. Its totient is φ = 215511270.

The previous prime is 431022541. The next prime is 431022577. The reversal of 431022542 is 245220134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431022541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107755634 + ... + 107755637.

It is an arithmetic number, because the mean of its divisors is an integer number (161633454).

Almost surely, 2^431022542 is an apocalyptic number.

431022542 is a deficient number, since it is larger than the sum of its proper divisors (215511274).

431022542 is a wasteful number, since it uses less digits than its factorization.

431022542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215511273.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 431022542 is about 20761.0823898948. The cubic root of 431022542 is about 755.3820512771.

Adding to 431022542 its reverse (245220134), we get a palindrome (676242676).

The spelling of 431022542 in words is "four hundred thirty-one million, twenty-two thousand, five hundred forty-two".