342440431 has 8 divisors (see below), whose sum is σ = 347129600. Its totient is φ = 337760280.

The previous prime is 342440429. The next prime is 342440489. The reversal of 342440431 is 134044243.

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

It is a cyclic number.

It is not a de Polignac number, because 342440431 - 2¹ = 342440429 is a prime.

It is a super-2 number, since 2×342440431² = 234530897566931522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342440396 and 342440405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342440411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113776 + ... + 116746.

It is an arithmetic number, because the mean of its divisors is an integer number (43391200).

Almost surely, 2^342440431 is an apocalyptic number.

342440431 is a deficient number, since it is larger than the sum of its proper divisors (4689169).

342440431 is a wasteful number, since it uses less digits than its factorization.

342440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 342440431 is about 18505.1460680536. The cubic root of 342440431 is about 699.6191336265.

Adding to 342440431 its reverse (134044243), we get a palindrome (476484674).

The spelling of 342440431 in words is "three hundred forty-two million, four hundred forty thousand, four hundred thirty-one".