343445431 has 8 divisors (see below), whose sum is σ = 399162240. Its totient is φ = 289391928.

The previous prime is 343445419. The next prime is 343445477. The reversal of 343445431 is 134544343.

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

It is not a de Polignac number, because 343445431 - 2²³ = 335056823 is a prime.

It is a super-2 number, since 2×343445431² = 235909528149551522, 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 = 343445393 and 343445402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343445491) 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, 415381 + ... + 416206.

It is an arithmetic number, because the mean of its divisors is an integer number (49895280).

Almost surely, 2^343445431 is an apocalyptic number.

343445431 is a deficient number, since it is larger than the sum of its proper divisors (55716809).

343445431 is an equidigital number, since it uses as much as digits as its factorization.

343445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831653.

The product of its digits is 34560, while the sum is 31.

The square root of 343445431 is about 18532.2807824617. The cubic root of 343445431 is about 700.3028832122.

Adding to 343445431 its reverse (134544343), we get a palindrome (477989774).

The spelling of 343445431 in words is "three hundred forty-three million, four hundred forty-five thousand, four hundred thirty-one".