740738881 has 2 divisors, whose sum is σ = 740738882. Its totient is φ = 740738880.

The previous prime is 740738879. The next prime is 740738891. The reversal of 740738881 is 188837047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698280625 + 42458256 = 26425^2 + 6516^2 .

It is a cyclic number.

It is not a de Polignac number, because 740738881 - 2¹ = 740738879 is a prime.

It is a super-2 number, since 2×740738881² = 1097388179650264322, which contains 22 as substring.

Together with 740738879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (740738891) 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 as a sum of consecutive naturals, namely, 370369440 + 370369441.

It is an arithmetic number, because the mean of its divisors is an integer number (370369441).

Almost surely, 2^740738881 is an apocalyptic number.

It is an amenable number.

740738881 is a deficient number, since it is larger than the sum of its proper divisors (1).

740738881 is an equidigital number, since it uses as much as digits as its factorization.

740738881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 740738881 is about 27216.5185319504. The cubic root of 740738881 is about 904.8051149807.

The spelling of 740738881 in words is "seven hundred forty million, seven hundred thirty-eight thousand, eight hundred eighty-one".