4001400281 has 2 divisors, whose sum is σ = 4001400282. Its totient is φ = 4001400280.

The previous prime is 4001400269. The next prime is 4001400283. The reversal of 4001400281 is 1820041004.

4001400281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2362446025 + 1638954256 = 48605^2 + 40484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001400281 is a prime.

It is a super-2 number, since 2×4001400281² = 32022408417573757922, which contains 22 as substring.

Together with 4001400283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4001400283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000700140 + 2000700141.

It is an arithmetic number, because the mean of its divisors is an integer number (2000700141).

Almost surely, 2^4001400281 is an apocalyptic number.

It is an amenable number.

4001400281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001400281 is an equidigital number, since it uses as much as digits as its factorization.

4001400281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4001400281 is about 63256.6224280114. The cubic root of 4001400281 is about 1587.5862643185.

Adding to 4001400281 its reverse (1820041004), we get a palindrome (5821441285).

The spelling of 4001400281 in words is "four billion, one million, four hundred thousand, two hundred eighty-one".