43999742 has 8 divisors (see below), whose sum is σ = 66481776. Its totient is φ = 21839152.

The previous prime is 43999679. The next prime is 43999751. The reversal of 43999742 is 24799934.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 80018 + ... + 80565.

It is an arithmetic number, because the mean of its divisors is an integer number (8310222).

Almost surely, 2^43999742 is an apocalyptic number.

43999742 is a deficient number, since it is larger than the sum of its proper divisors (22482034).

43999742 is a wasteful number, since it uses less digits than its factorization.

43999742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160722.

The product of its digits is 489888, while the sum is 47.

The square root of 43999742 is about 6633.2301332006. The cubic root of 43999742 is about 353.0341435086.

It can be divided in two parts, 4399 and 9742, that added together give a palindrome (14141).

The spelling of 43999742 in words is "forty-three million, nine hundred ninety-nine thousand, seven hundred forty-two".