400421244224031 has 8 divisors (see below), whose sum is σ = 533933599266480. Its totient is φ = 266928192665472.

The previous prime is 400421244223961. The next prime is 400421244224051. The reversal of 400421244224031 is 130422442124004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400421244224031 - 2¹⁸ = 400421243961887 is a prime.

It is a super-2 number, since 2×400421244224031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400421244223983 and 400421244224001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400421244224051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4825822570 + ... + 4825905543.

It is an arithmetic number, because the mean of its divisors is an integer number (66741699908310).

Almost surely, 2^{400421244224031} is an apocalyptic number.

400421244224031 is a deficient number, since it is larger than the sum of its proper divisors (133512355042449).

400421244224031 is a wasteful number, since it uses less digits than its factorization.

400421244224031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651741945.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 400421244224031 its reverse (130422442124004), we get a palindrome (530843686348035).

The spelling of 400421244224031 in words is "four hundred trillion, four hundred twenty-one billion, two hundred forty-four million, two hundred twenty-four thousand, thirty-one".