400045540004 has 48 divisors (see below), whose sum is σ = 802277481600. Its totient is φ = 172765443840.

The previous prime is 400045539991. The next prime is 400045540039.

400045540004 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175729 + ... + 1477304.

It is an arithmetic number, because the mean of its divisors is an integer number (16714114200).

Almost surely, 2^400045540004 is an apocalyptic number.

400045540004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400045540004 is an abundant number, since it is smaller than the sum of its proper divisors (402231941596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400045540004 is a wasteful number, since it uses less digits than its factorization.

400045540004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653220 (or 2653218 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

It can be divided in two parts, 400045 and 540004, that added together give a palindrome (940049).

The spelling of 400045540004 in words is "four hundred billion, forty-five million, five hundred forty thousand, four".