400342214310220 has 96 divisors (see below), whose sum is σ = 1034882777392128. Its totient is φ = 126683083475712.

The previous prime is 400342214310211. The next prime is 400342214310221. The reversal of 400342214310220 is 22013412243004.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (400342214310221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3785544 + ... + 28548463.

It is an arithmetic number, because the mean of its divisors is an integer number (10780028931168).

Almost surely, 2^{400342214310220} is an apocalyptic number.

It is an amenable number.

400342214310220 is an abundant number, since it is smaller than the sum of its proper divisors (634540563081908).

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

400342214310220 is a wasteful number, since it uses less digits than its factorization.

400342214310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32340839 (or 32340837 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 400342214310220 its reverse (22013412243004), we get a palindrome (422355626553224).

The spelling of 400342214310220 in words is "four hundred trillion, three hundred forty-two billion, two hundred fourteen million, three hundred ten thousand, two hundred twenty".