740839213 has 4 divisors (see below), whose sum is σ = 741028288. Its totient is φ = 740650140.

The previous prime is 740839207. The next prime is 740839261. The reversal of 740839213 is 312938047.

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 a de Polignac number, because none of the positive numbers 2^k-740839213 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 (740839273) 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, 88533 + ... + 96538.

It is an arithmetic number, because the mean of its divisors is an integer number (185257072).

Almost surely, 2^740839213 is an apocalyptic number.

It is an amenable number.

740839213 is a deficient number, since it is larger than the sum of its proper divisors (189075).

740839213 is a wasteful number, since it uses less digits than its factorization.

740839213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189074.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 740839213 is about 27218.3616883897. The cubic root of 740839213 is about 904.8459646470.

The spelling of 740839213 in words is "seven hundred forty million, eight hundred thirty-nine thousand, two hundred thirteen".