740445993 has 12 divisors (see below), whose sum is σ = 1222323648. Its totient is φ = 423111960.

The previous prime is 740445991. The next prime is 740445997. The reversal of 740445993 is 399544047.

It is a happy number.

It is not a de Polignac number, because 740445993 - 2¹ = 740445991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (740445991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5876493 + ... + 5876618.

It is an arithmetic number, because the mean of its divisors is an integer number (101860304).

Almost surely, 2^740445993 is an apocalyptic number.

It is an amenable number.

740445993 is a deficient number, since it is larger than the sum of its proper divisors (481877655).

740445993 is a wasteful number, since it uses less digits than its factorization.

740445993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11753124 (or 11753121 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 740445993 is about 27211.1372970701. The cubic root of 740445993 is about 904.6858460081.

The spelling of 740445993 in words is "seven hundred forty million, four hundred forty-five thousand, nine hundred ninety-three".