740340723 has 4 divisors (see below), whose sum is σ = 987120968. Its totient is φ = 493560480.

The previous prime is 740340707. The next prime is 740340743. The reversal of 740340723 is 327043047.

740340723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327043047 = 3 ⋅109014349.

It is not a de Polignac number, because 740340723 - 2⁴ = 740340707 is a prime.

It is a super-2 number, since 2×740340723² = 1096208772264325458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740340703) 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, 123390118 + ... + 123390123.

It is an arithmetic number, because the mean of its divisors is an integer number (246780242).

Almost surely, 2^740340723 is an apocalyptic number.

740340723 is a deficient number, since it is larger than the sum of its proper divisors (246780245).

740340723 is a wasteful number, since it uses less digits than its factorization.

740340723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246780244.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 740340723 is about 27209.2029100450. The cubic root of 740340723 is about 904.6429705908.

The spelling of 740340723 in words is "seven hundred forty million, three hundred forty thousand, seven hundred twenty-three".