401220108 has 48 divisors (see below), whose sum is σ = 1042188000. Its totient is φ = 133484544.

The previous prime is 401220103. The next prime is 401220109. The reversal of 401220108 is 801022104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (401220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58188 + ... + 64716.

It is an arithmetic number, because the mean of its divisors is an integer number (21712250).

Almost surely, 2^401220108 is an apocalyptic number.

It is an amenable number.

401220108 is an abundant number, since it is smaller than the sum of its proper divisors (640967892).

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

401220108 is a wasteful number, since it uses less digits than its factorization.

401220108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111 (or 7103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 401220108 is about 20030.4794750400. The cubic root of 401220108 is about 737.5546920275.

The spelling of 401220108 in words is "four hundred one million, two hundred twenty thousand, one hundred eight".