402440200028 has 6 divisors (see below), whose sum is σ = 704270350056. Its totient is φ = 201220100012.

The previous prime is 402440200027. The next prime is 402440200067. The reversal of 402440200028 is 820002044204.

It is a super-2 number, since 2×402440200028² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402440200027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305025000 + ... + 50305025007.

It is an arithmetic number, because the mean of its divisors is an integer number (117378391676).

Almost surely, 2^402440200028 is an apocalyptic number.

It is an amenable number.

402440200028 is a deficient number, since it is larger than the sum of its proper divisors (301830150028).

402440200028 is a wasteful number, since it uses less digits than its factorization.

402440200028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100610050011 (or 100610050009 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The spelling of 402440200028 in words is "four hundred two billion, four hundred forty million, two hundred thousand, twenty-eight".