743842 has 8 divisors (see below), whose sum is σ = 1217232. Its totient is φ = 338100.

The previous prime is 743837. The next prime is 743849. The reversal of 743842 is 248347.

743842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 743842.

It is not an unprimeable number, because it can be changed into a prime (743849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16884 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (152154).

2⁷⁴³⁸⁴² is an apocalyptic number.

743842 is a deficient number, since it is larger than the sum of its proper divisors (473390).

743842 is a wasteful number, since it uses less digits than its factorization.

743842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33824.

The product of its digits is 5376, while the sum is 28.

The square root of 743842 is about 862.4627528189. The cubic root of 743842 is about 90.6066830995.

It can be divided in two parts, 74 and 3842, that added together give a triangular number (3916 = T₈₈).

The spelling of 743842 in words is "seven hundred forty-three thousand, eight hundred forty-two".