43992143 has 8 divisors (see below), whose sum is σ = 47797008. Its totient is φ = 40247424.

The previous prime is 43992089. The next prime is 43992161. The reversal of 43992143 is 34129934.

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 43992143 - 2⁶ = 43992079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43992743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13505 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (5974626).

Almost surely, 2^43992143 is an apocalyptic number.

43992143 is a deficient number, since it is larger than the sum of its proper divisors (3804865).

43992143 is a wasteful number, since it uses less digits than its factorization.

43992143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30073.

The product of its digits is 23328, while the sum is 35.

The square root of 43992143 is about 6632.6573106109. The cubic root of 43992143 is about 353.0138186856.

The spelling of 43992143 in words is "forty-three million, nine hundred ninety-two thousand, one hundred forty-three".