2402666289 has 9 divisors (see below), whose sum is σ = 3470730393. Its totient is φ = 1601679492.

The previous prime is 2402666281. The next prime is 2402666293. The reversal of 2402666289 is 9826662042.

The square root of 2402666289 is 49017.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2402666289 - 2³ = 2402666281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2402666281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 138882 + ... + 155220.

Almost surely, 2^2402666289 is an apocalyptic number.

2402666289 is the 49017-th square number.

2402666289 is the 24509-th centered octagonal number.

It is an amenable number.

2402666289 is a deficient number, since it is larger than the sum of its proper divisors (1068064104).

2402666289 is an frugal number, since it uses more digits than its factorization.

2402666289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32684 (or 16342 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The cubic root of 2402666289 is about 1339.3615227026.

The spelling of 2402666289 in words is "two billion, four hundred two million, six hundred sixty-six thousand, two hundred eighty-nine".