400224222244024 has 32 divisors (see below), whose sum is σ = 794621320534080. Its totient is φ = 188326937549824.

The previous prime is 400224222243991. The next prime is 400224222244027. The reversal of 400224222244024 is 420442222422004.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400224222244027) 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, 106528912 + ... + 110221855.

It is an arithmetic number, because the mean of its divisors is an integer number (24831916266690).

Almost surely, 2^{400224222244024} is an apocalyptic number.

It is an amenable number.

400224222244024 is a deficient number, since it is larger than the sum of its proper divisors (394397098290056).

400224222244024 is a wasteful number, since it uses less digits than its factorization.

400224222244024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216764367 (or 216764363 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 400224222244024 its reverse (420442222422004), we get a palindrome (820666444666028).

The spelling of 400224222244024 in words is "four hundred trillion, two hundred twenty-four billion, two hundred twenty-two million, two hundred forty-four thousand, twenty-four".