431304262442 has 4 divisors (see below), whose sum is σ = 646956393666. Its totient is φ = 215652131220.

The previous prime is 431304262429. The next prime is 431304262447. The reversal of 431304262442 is 244262403134.

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

It can be written as a sum of positive squares in only one way, i.e., 360094806241 + 71209456201 = 600079^2 + 266851^2 .

It is a super-2 number, since 2×431304262442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431304262447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107826065609 + ... + 107826065612.

Almost surely, 2^431304262442 is an apocalyptic number.

431304262442 is a deficient number, since it is larger than the sum of its proper divisors (215652131224).

431304262442 is a wasteful number, since it uses less digits than its factorization.

431304262442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215652131223.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 431304262442 its reverse (244262403134), we get a palindrome (675566665576).

The spelling of 431304262442 in words is "four hundred thirty-one billion, three hundred four million, two hundred sixty-two thousand, four hundred forty-two".