740311673 has 4 divisors (see below), whose sum is σ = 742838628. Its totient is φ = 737784720.

The previous prime is 740311643. The next prime is 740311709. The reversal of 740311673 is 376113047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376113047 = 659 ⋅570733.

It can be written as a sum of positive squares in 2 ways, for example, as 632421904 + 107889769 = 25148^2 + 10387^2 .

It is a cyclic number.

It is not a de Polignac number, because 740311673 - 2¹² = 740307577 is a prime.

It is a super-2 number, since 2×740311673² = 1096122746360117858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740311613) 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, 1263038 + ... + 1263623.

It is an arithmetic number, because the mean of its divisors is an integer number (185709657).

Almost surely, 2^740311673 is an apocalyptic number.

It is an amenable number.

740311673 is a deficient number, since it is larger than the sum of its proper divisors (2526955).

740311673 is a wasteful number, since it uses less digits than its factorization.

740311673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526954.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 740311673 is about 27208.6690780714. The cubic root of 740311673 is about 904.6311381011.

The spelling of 740311673 in words is "seven hundred forty million, three hundred eleven thousand, six hundred seventy-three".