740806 has 16 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 333000.

The previous prime is 740801. The next prime is 740849. The reversal of 740806 is 608047.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740801) by changing a digit.

740806 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 in 7 ways as a sum of consecutive naturals, for example, 3211 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2⁷⁴⁰⁸⁰⁶ is an apocalyptic number.

740806 is a deficient number, since it is larger than the sum of its proper divisors (484922).

740806 is a wasteful number, since it uses less digits than its factorization.

740806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 740806 is about 860.7008771925. The cubic root of 740806 is about 90.4832442550.

The spelling of 740806 in words is "seven hundred forty thousand, eight hundred six".