740033321 has 2 divisors, whose sum is σ = 740033322. Its totient is φ = 740033320.

The previous prime is 740033251. The next prime is 740033347. The reversal of 740033321 is 123330047.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685863721 + 54169600 = 26189^2 + 7360^2 .

It is an emirp because it is prime and its reverse (123330047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740033321 - 2²⁶ = 672924457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740033221) 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 as a sum of consecutive naturals, namely, 370016660 + 370016661.

It is an arithmetic number, because the mean of its divisors is an integer number (370016661).

Almost surely, 2^740033321 is an apocalyptic number.

It is an amenable number.

740033321 is a deficient number, since it is larger than the sum of its proper divisors (1).

740033321 is an equidigital number, since it uses as much as digits as its factorization.

740033321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 740033321 is about 27203.5534627372. The cubic root of 740033321 is about 904.5177455659.

Adding to 740033321 its reverse (123330047), we get a palindrome (863363368).

The spelling of 740033321 in words is "seven hundred forty million, thirty-three thousand, three hundred twenty-one".