742285 has 4 divisors (see below), whose sum is σ = 890748. Its totient is φ = 593824.

The previous prime is 742283. The next prime is 742289. The reversal of 742285 is 582247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 407044 + 335241 = 638^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 742285 - 2¹ = 742283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 74224 + ... + 74233.

It is an arithmetic number, because the mean of its divisors is an integer number (222687).

2⁷⁴²²⁸⁵ is an apocalyptic number.

It is an amenable number.

742285 is a deficient number, since it is larger than the sum of its proper divisors (148463).

742285 is a wasteful number, since it uses less digits than its factorization.

742285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148462.

The product of its digits is 4480, while the sum is 28.

The square root of 742285 is about 861.5596322948. The cubic root of 742285 is about 90.5434200445.

The spelling of 742285 in words is "seven hundred forty-two thousand, two hundred eighty-five".