43413431 has 8 divisors (see below), whose sum is σ = 43956864. Its totient is φ = 42872760.

The previous prime is 43413421. The next prime is 43413449. The reversal of 43413431 is 13431434.

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

It is a de Polignac number, because none of the positive numbers 2^k-43413431 is a prime.

It is a super-2 number, since 2×43413431² = 3769451982383522, 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 = 43413397 and 43413406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43413401) 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, 67196 + ... + 67838.

It is an arithmetic number, because the mean of its divisors is an integer number (5494608).

Almost surely, 2^43413431 is an apocalyptic number.

43413431 is a deficient number, since it is larger than the sum of its proper divisors (543433).

43413431 is a wasteful number, since it uses less digits than its factorization.

43413431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its digits is 1728, while the sum is 23.

The square root of 43413431 is about 6588.8869317966. The cubic root of 43413431 is about 351.4590277389.

Adding to 43413431 its reverse (13431434), we get a palindrome (56844865).

The spelling of 43413431 in words is "forty-three million, four hundred thirteen thousand, four hundred thirty-one".