401224542208 has 144 divisors (see below), whose sum is σ = 947423524320. Its totient is φ = 166400778240.

The previous prime is 401224542161. The next prime is 401224542221. The reversal of 401224542208 is 802245422104.

It is a super-2 number, since 2×401224542208² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13762335 + ... + 13791457.

It is an arithmetic number, because the mean of its divisors is an integer number (6579330030).

Almost surely, 2^401224542208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401224542208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473711762160).

401224542208 is an abundant number, since it is smaller than the sum of its proper divisors (546198982112).

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

401224542208 is an equidigital number, since it uses as much as digits as its factorization.

401224542208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29214 (or 29163 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 34.

The spelling of 401224542208 in words is "four hundred one billion, two hundred twenty-four million, five hundred forty-two thousand, two hundred eight".