740393 has 4 divisors (see below), whose sum is σ = 772608. Its totient is φ = 708180.

The previous prime is 740387. The next prime is 740423. The reversal of 740393 is 393047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 740393 - 2⁶ = 740329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16073 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (193152).

2⁷⁴⁰³⁹³ is an apocalyptic number.

It is an amenable number.

740393 is a deficient number, since it is larger than the sum of its proper divisors (32215).

740393 is a wasteful number, since it uses less digits than its factorization.

740393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32214.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 740393 is about 860.4609229942. The cubic root of 740393 is about 90.4664262998.

The spelling of 740393 in words is "seven hundred forty thousand, three hundred ninety-three".