742443 has 8 divisors (see below), whose sum is σ = 1066128. Its totient is φ = 456864.

The previous prime is 742439. The next prime is 742457. The reversal of 742443 is 344247.

742443 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 not a de Polignac number, because 742443 - 2² = 742439 is a prime.

742443 is a lucky number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (742243) 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, 9480 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (133266).

2⁷⁴²⁴⁴³ is an apocalyptic number.

742443 is a deficient number, since it is larger than the sum of its proper divisors (323685).

742443 is a wasteful number, since it uses less digits than its factorization.

742443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19053.

The product of its digits is 2688, while the sum is 24.

The square root of 742443 is about 861.6513215913. The cubic root of 742443 is about 90.5498438330.

It can be divided in two parts, 74244 and 3, that added together give a palindrome (74247).

The spelling of 742443 in words is "seven hundred forty-two thousand, four hundred forty-three", and thus it is an iban number.