2400014404021 has 4 divisors (see below), whose sum is σ = 2584630896652. Its totient is φ = 2215397911392.

The previous prime is 2400014403989. The next prime is 2400014404043. The reversal of 2400014404021 is 1204044100042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 749239123396 + 1650775280625 = 865586^2 + 1284825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400014404021 - 2⁵ = 2400014403989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2400014403983 and 2400014404001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400014404061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92308246296 + ... + 92308246321.

It is an arithmetic number, because the mean of its divisors is an integer number (646157724163).

Almost surely, 2^{2400014404021} is an apocalyptic number.

It is an amenable number.

2400014404021 is a deficient number, since it is larger than the sum of its proper divisors (184616492631).

2400014404021 is a wasteful number, since it uses less digits than its factorization.

2400014404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184616492630.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2400014404021 its reverse (1204044100042), we get a palindrome (3604058504063).

The spelling of 2400014404021 in words is "two trillion, four hundred billion, fourteen million, four hundred four thousand, twenty-one".