431020240442 has 16 divisors (see below), whose sum is σ = 735971320512. Its totient is φ = 187400104320.

The previous prime is 431020240393. The next prime is 431020240457. The reversal of 431020240442 is 244042020134.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425908823 + ... + 425909834.

It is an arithmetic number, because the mean of its divisors is an integer number (45998207532).

Almost surely, 2^431020240442 is an apocalyptic number.

431020240442 is a deficient number, since it is larger than the sum of its proper divisors (304951080070).

431020240442 is a wasteful number, since it uses less digits than its factorization.

431020240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851818693.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 431020240442 its reverse (244042020134), we get a palindrome (675062260576).

The spelling of 431020240442 in words is "four hundred thirty-one billion, twenty million, two hundred forty thousand, four hundred forty-two".