743018 has 4 divisors (see below), whose sum is σ = 1114530. Its totient is φ = 371508.

The previous prime is 742999. The next prime is 743027. The reversal of 743018 is 810347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810347 = 29 ⋅27943.

It can be written as a sum of positive squares in only one way, i.e., 552049 + 190969 = 743^2 + 437^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 742984 and 743002.

It is an unprimeable number.

743018 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185753 + ... + 185756.

2⁷⁴³⁰¹⁸ is an apocalyptic number.

743018 is a deficient number, since it is larger than the sum of its proper divisors (371512).

743018 is a wasteful number, since it uses less digits than its factorization.

743018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371511.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 743018 is about 861.9849186616. The cubic root of 743018 is about 90.5732138537.

The spelling of 743018 in words is "seven hundred forty-three thousand, eighteen".