740293 has 4 divisors (see below), whose sum is σ = 750508. Its totient is φ = 730080.

The previous prime is 740287. The next prime is 740303. The reversal of 740293 is 392047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 392047 = 61 ⋅6427.

It can be written as a sum of positive squares in 2 ways, for example, as 268324 + 471969 = 518^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 740293 - 2¹³ = 732101 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 (740693) 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, 4998 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (187627).

2⁷⁴⁰²⁹³ is an apocalyptic number.

740293 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

740293 is a deficient number, since it is larger than the sum of its proper divisors (10215).

740293 is a wasteful number, since it uses less digits than its factorization.

740293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 740293 is about 860.4028126407. The cubic root of 740293 is about 90.4623532152.

The spelling of 740293 in words is "seven hundred forty thousand, two hundred ninety-three".