740400757 has 2 divisors, whose sum is σ = 740400758. Its totient is φ = 740400756.

The previous prime is 740400707. The next prime is 740400761. The reversal of 740400757 is 757004047.

740400757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593360881 + 147039876 = 24359^2 + 12126^2 .

It is an emirp because it is prime and its reverse (757004047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740400757 - 2⁷ = 740400629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740400707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370200378 + 370200379.

It is an arithmetic number, because the mean of its divisors is an integer number (370200379).

Almost surely, 2^740400757 is an apocalyptic number.

It is an amenable number.

740400757 is a deficient number, since it is larger than the sum of its proper divisors (1).

740400757 is an equidigital number, since it uses as much as digits as its factorization.

740400757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 740400757 is about 27210.3060806012. The cubic root of 740400757 is about 904.6674223360.

The spelling of 740400757 in words is "seven hundred forty million, four hundred thousand, seven hundred fifty-seven".