7387440289 has 2 divisors, whose sum is σ = 7387440290. Its totient is φ = 7387440288.

The previous prime is 7387440259. The next prime is 7387440323. The reversal of 7387440289 is 9820447837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4461171264 + 2926269025 = 66792^2 + 54095^2 .

It is a cyclic number.

It is not a de Polignac number, because 7387440289 - 2⁵ = 7387440257 is a prime.

It is not a weakly prime, because it can be changed into another prime (7387440259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3693720144 + 3693720145.

It is an arithmetic number, because the mean of its divisors is an integer number (3693720145).

Almost surely, 2^7387440289 is an apocalyptic number.

It is an amenable number.

7387440289 is a deficient number, since it is larger than the sum of its proper divisors (1).

7387440289 is an equidigital number, since it uses as much as digits as its factorization.

7387440289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The square root of 7387440289 is about 85950.2198310161. The cubic root of 7387440289 is about 1947.5920564135.

The spelling of 7387440289 in words is "seven billion, three hundred eighty-seven million, four hundred forty thousand, two hundred eighty-nine".