4001424481 has 2 divisors, whose sum is σ = 4001424482. Its totient is φ = 4001424480.

The previous prime is 4001424389. The next prime is 4001424551. The reversal of 4001424481 is 1844241004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2351765025 + 1649659456 = 48495^2 + 40616^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001424481 - 2⁹ = 4001423969 is a prime.

It is a super-2 number, since 2×4001424481² = 32022795754292238722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4001424881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000712240 + 2000712241.

It is an arithmetic number, because the mean of its divisors is an integer number (2000712241).

Almost surely, 2^4001424481 is an apocalyptic number.

It is an amenable number.

4001424481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001424481 is an equidigital number, since it uses as much as digits as its factorization.

4001424481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 4001424481 is about 63256.8137120421. The cubic root of 4001424481 is about 1587.5894648239.

Adding to 4001424481 its reverse (1844241004), we get a palindrome (5845665485).

The spelling of 4001424481 in words is "four billion, one million, four hundred twenty-four thousand, four hundred eighty-one".