401852880 has 320 divisors, whose sum is σ = 1627395840. Its totient is φ = 89856000.

The previous prime is 401852863. The next prime is 401852887. The reversal of 401852880 is 88258104.

401852880 is a `hidden beast` number, since 40 + 18 + 528 + 80 = 666.

It is a super-2 number, since 2×401852880² = 322971474328588800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401852887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308230 + ... + 309530.

It is an arithmetic number, because the mean of its divisors is an integer number (5085612).

Almost surely, 2^401852880 is an apocalyptic number.

401852880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401852880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813697920).

401852880 is an abundant number, since it is smaller than the sum of its proper divisors (1225542960).

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

401852880 is a wasteful number, since it uses less digits than its factorization.

401852880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 401852880 is about 20046.2684806924. The cubic root of 401852880 is about 737.9422256313.

The spelling of 401852880 in words is "four hundred one million, eight hundred fifty-two thousand, eight hundred eighty".