2400633281 has 2 divisors, whose sum is σ = 2400633282. Its totient is φ = 2400633280.

The previous prime is 2400633269. The next prime is 2400633343. The reversal of 2400633281 is 1823360042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2387788225 + 12845056 = 48865^2 + 3584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400633281 - 2³⁰ = 1326891457 is a prime.

It is a super-2 number, since 2×2400633281² = 11526080299689649922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2400633181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200316640 + 1200316641.

It is an arithmetic number, because the mean of its divisors is an integer number (1200316641).

Almost surely, 2^2400633281 is an apocalyptic number.

It is an amenable number.

2400633281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400633281 is an equidigital number, since it uses as much as digits as its factorization.

2400633281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2400633281 is about 48996.2578264912. The cubic root of 2400633281 is about 1338.9836506881.

The spelling of 2400633281 in words is "two billion, four hundred million, six hundred thirty-three thousand, two hundred eighty-one".