401020908 has 12 divisors (see below), whose sum is σ = 935715480. Its totient is φ = 133673632.

The previous prime is 401020889. The next prime is 401020909. The reversal of 401020908 is 809020104.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (401020909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16709193 + ... + 16709216.

It is an arithmetic number, because the mean of its divisors is an integer number (77976290).

Almost surely, 2^401020908 is an apocalyptic number.

It is an amenable number.

401020908 is an abundant number, since it is smaller than the sum of its proper divisors (534694572).

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

401020908 is a wasteful number, since it uses less digits than its factorization.

401020908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33418416 (or 33418414 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 401020908 is about 20025.5064355436. The cubic root of 401020908 is about 737.4326100637.

The spelling of 401020908 in words is "four hundred one million, twenty thousand, nine hundred eight".