402440213001 has 16 divisors (see below), whose sum is σ = 545433661440. Its totient is φ = 263870929920.

The previous prime is 402440212997. The next prime is 402440213057. The reversal of 402440213001 is 100312044204.

It is not a de Polignac number, because 402440213001 - 2² = 402440212997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402440213081) 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 15 ways as a sum of consecutive naturals, for example, 2012521 + ... + 2203433.

It is an arithmetic number, because the mean of its divisors is an integer number (34089603840).

Almost surely, 2^402440213001 is an apocalyptic number.

It is an amenable number.

402440213001 is a deficient number, since it is larger than the sum of its proper divisors (142993448439).

402440213001 is a wasteful number, since it uses less digits than its factorization.

402440213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202496.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 402440213001 its reverse (100312044204), we get a palindrome (502752257205).

The spelling of 402440213001 in words is "four hundred two billion, four hundred forty million, two hundred thirteen thousand, one".