402400002044 has 24 divisors (see below), whose sum is σ = 742146787200. Its totient is φ = 190383309360.

The previous prime is 402400002023. The next prime is 402400002061. The reversal of 402400002044 is 440200004204.

It is a super-2 number, since 2×402400002044² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3091622 + ... + 3219149.

It is an arithmetic number, because the mean of its divisors is an integer number (30922782800).

Almost surely, 2^402400002044 is an apocalyptic number.

It is an amenable number.

402400002044 is a deficient number, since it is larger than the sum of its proper divisors (339746785156).

402400002044 is a wasteful number, since it uses less digits than its factorization.

402400002044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311633 (or 6311631 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 402400002044 its reverse (440200004204), we get a palindrome (842600006248).

The spelling of 402400002044 in words is "four hundred two billion, four hundred million, two thousand, forty-four".