400440000404 has 36 divisors (see below), whose sum is σ = 727791573600. Its totient is φ = 192776796576.

The previous prime is 400440000371. The next prime is 400440000421. The reversal of 400440000404 is 404000044004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041887 + ... + 1373465.

It is an arithmetic number, because the mean of its divisors is an integer number (20216432600).

Almost surely, 2^400440000404 is an apocalyptic number.

It is an amenable number.

400440000404 is a deficient number, since it is larger than the sum of its proper divisors (327351573196).

400440000404 is a wasteful number, since it uses less digits than its factorization.

400440000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332000 (or 331969 counting only the distinct ones).

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

Adding to 400440000404 its reverse (404000044004), we get a palindrome (804440044408).

The spelling of 400440000404 in words is "four hundred billion, four hundred forty million, four hundred four", and thus it is an aban number.