401166204 has 48 divisors (see below), whose sum is σ = 995597568. Its totient is φ = 125287168.

The previous prime is 401166191. The next prime is 401166211. The reversal of 401166204 is 402661104.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41977 + ... + 50639.

It is an arithmetic number, because the mean of its divisors is an integer number (20741616).

Almost surely, 2^401166204 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 401166204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497798784).

401166204 is an abundant number, since it is smaller than the sum of its proper divisors (594431364).

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

401166204 is a wasteful number, since it uses less digits than its factorization.

401166204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8914 (or 8912 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401166204 is about 20029.1338804253. The cubic root of 401166204 is about 737.5216603425.

The spelling of 401166204 in words is "four hundred one million, one hundred sixty-six thousand, two hundred four".