400416011905 has 48 divisors (see below), whose sum is σ = 614751621120. Its totient is φ = 248057486208.

The previous prime is 400416011899. The next prime is 400416011971. The reversal of 400416011905 is 509110614004.

It is not a de Polignac number, because 400416011905 - 2²¹ = 400413914753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1187745 + ... + 1487134.

It is an arithmetic number, because the mean of its divisors is an integer number (12807325440).

Almost surely, 2^400416011905 is an apocalyptic number.

It is an amenable number.

400416011905 is a deficient number, since it is larger than the sum of its proper divisors (214335609215).

400416011905 is a wasteful number, since it uses less digits than its factorization.

400416011905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674958 (or 2674951 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 400416011905 its reverse (509110614004), we get a palindrome (909526625909).

The spelling of 400416011905 in words is "four hundred billion, four hundred sixteen million, eleven thousand, nine hundred five".