431220142 has 8 divisors (see below), whose sum is σ = 647163000. Its totient is φ = 215499144.

The previous prime is 431220131. The next prime is 431220161. The reversal of 431220142 is 241022134.

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

It is a congruent number.

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, 50517 + ... + 58432.

It is an arithmetic number, because the mean of its divisors is an integer number (80895375).

Almost surely, 2^431220142 is an apocalyptic number.

431220142 is a deficient number, since it is larger than the sum of its proper divisors (215942858).

431220142 is a wasteful number, since it uses less digits than its factorization.

431220142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110930.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 431220142 is about 20765.8407486911. The cubic root of 431220142 is about 755.4974672742.

Adding to 431220142 its reverse (241022134), we get a palindrome (672242276).

The spelling of 431220142 in words is "four hundred thirty-one million, two hundred twenty thousand, one hundred forty-two".