400044404454 has 16 divisors (see below), whose sum is σ = 800101381440. Its totient is φ = 133346039400.

The previous prime is 400044404453. The next prime is 400044404509. The reversal of 400044404454 is 454404440004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400044404453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81472 + ... + 898179.

It is an arithmetic number, because the mean of its divisors is an integer number (50006336340).

Almost surely, 2^400044404454 is an apocalyptic number.

400044404454 is an abundant number, since it is smaller than the sum of its proper divisors (400056976986).

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

400044404454 is a wasteful number, since it uses less digits than its factorization.

400044404454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047715.

The product of its (nonzero) digits is 81920, while the sum is 33.

Adding to 400044404454 its reverse (454404440004), we get a palindrome (854448844458).

The spelling of 400044404454 in words is "four hundred billion, forty-four million, four hundred four thousand, four hundred fifty-four".