718444 has 12 divisors (see below), whose sum is σ = 1286824. Its totient is φ = 350784.

The previous prime is 718433. The next prime is 718453. The reversal of 718444 is 444817.

It is a super-2 number, since 2×718444² = 1032323562272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917 + ... + 2260.

2⁷¹⁸⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

718444 is a deficient number, since it is larger than the sum of its proper divisors (568380).

718444 is a wasteful number, since it uses less digits than its factorization.

718444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224 (or 4222 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 718444 is about 847.6107597241. The cubic root of 718444 is about 89.5634829403.

It can be divided in two parts, 71 and 8444, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 718444 in words is "seven hundred eighteen thousand, four hundred forty-four".