2402729865 has 128 divisors (see below), whose sum is σ = 4622745600. Its totient is φ = 1181640960.

The previous prime is 2402729863. The next prime is 2402729869. The reversal of 2402729865 is 5689272042.

It is not a de Polignac number, because 2402729865 - 2¹ = 2402729863 is a prime.

It is a super-2 number, since 2×2402729865² = 11546221608325836450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

Together with 2220015735 it forms an amicable pair .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2402729865.

It is not an unprimeable number, because it can be changed into a prime (2402729863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9135724 + ... + 9135986.

It is an arithmetic number, because the mean of its divisors is an integer number (36115200).

Almost surely, 2^2402729865 is an apocalyptic number.

It is an amenable number.

2402729865 is a deficient number, since it is larger than the sum of its proper divisors (2220015735).

2402729865 is a wasteful number, since it uses less digits than its factorization.

2402729865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2402729865 is about 49017.6485054108. The cubic root of 2402729865 is about 1339.3733360364.

The spelling of 2402729865 in words is "two billion, four hundred two million, seven hundred twenty-nine thousand, eight hundred sixty-five".