400455221035 has 4 divisors (see below), whose sum is σ = 480546265248. Its totient is φ = 320364176824.

The previous prime is 400455221009. The next prime is 400455221081. The reversal of 400455221035 is 530122554004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400455221035 - 2³³ = 391865286443 is a prime.

It is a super-3 number, since 3×400455221035³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400455220988 and 400455221006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40045522099 + ... + 40045522108.

It is an arithmetic number, because the mean of its divisors is an integer number (120136566312).

Almost surely, 2^400455221035 is an apocalyptic number.

400455221035 is a deficient number, since it is larger than the sum of its proper divisors (80091044213).

400455221035 is an equidigital number, since it uses as much as digits as its factorization.

400455221035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80091044212.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 400455221035 its reverse (530122554004), we get a palindrome (930577775039).

The spelling of 400455221035 in words is "four hundred billion, four hundred fifty-five million, two hundred twenty-one thousand, thirty-five".