740286 has 16 divisors (see below), whose sum is σ = 1645200. Its totient is φ = 246744.

The previous prime is 740279. The next prime is 740287. The reversal of 740286 is 682047.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 6801 + ... + 6908.

It is an arithmetic number, because the mean of its divisors is an integer number (102825).

2⁷⁴⁰²⁸⁶ is an apocalyptic number.

740286 is an abundant number, since it is smaller than the sum of its proper divisors (904914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740286 is a wasteful number, since it uses less digits than its factorization.

740286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720 (or 13714 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 740286 is about 860.3987447690. The cubic root of 740286 is about 90.4620680855.

The spelling of 740286 in words is "seven hundred forty thousand, two hundred eighty-six".