400223555544420 has 72 divisors (see below), whose sum is σ = 1215318246138360. Its totient is φ = 106611398461440.

The previous prime is 400223555544419. The next prime is 400223555544511. The reversal of 400223555544420 is 24445555322004.

400223555544420 is a `hidden beast` number, since 4 + 0 + 0 + 2 + 2 + 3 + 55 + 554 + 4 + 42 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15247135038564 + 384976420505856 = 3904758^2 + 19620816^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1196530411 + ... + 1196864850.

It is an arithmetic number, because the mean of its divisors is an integer number (16879420085255).

Almost surely, 2^{400223555544420} is an apocalyptic number.

It is an amenable number.

400223555544420 is an abundant number, since it is smaller than the sum of its proper divisors (815094690593940).

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

400223555544420 is a wasteful number, since it uses less digits than its factorization.

400223555544420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393396205 (or 2393396200 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 45.

The spelling of 400223555544420 in words is "four hundred trillion, two hundred twenty-three billion, five hundred fifty-five million, five hundred forty-four thousand, four hundred twenty".