740285 has 16 divisors (see below), whose sum is σ = 1094016. Its totient is φ = 468288.

The previous prime is 740279. The next prime is 740287. The reversal of 740285 is 582047.

It is a cyclic number.

It is not a de Polignac number, because 740285 - 2¹⁴ = 723901 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (68376).

2⁷⁴⁰²⁸⁵ is an apocalyptic number.

It is an amenable number.

740285 is a deficient number, since it is larger than the sum of its proper divisors (353731).

740285 is a wasteful number, since it uses less digits than its factorization.

740285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 740285 is about 860.3981636429. The cubic root of 740285 is about 90.4620273526.

The spelling of 740285 in words is "seven hundred forty thousand, two hundred eighty-five".