401608845 has 48 divisors (see below), whose sum is σ = 766876032. Its totient is φ = 192804480.

The previous prime is 401608829. The next prime is 401608859. The reversal of 401608845 is 548806104.

401608845 is a `hidden beast` number, since 4 + 0 + 1 + 608 + 8 + 45 = 666.

It is not a de Polignac number, because 401608845 - 2⁴ = 401608829 is a prime.

It is a super-2 number, since 2×401608845² = 322579328764468050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 47047 + ... + 54923.

It is an arithmetic number, because the mean of its divisors is an integer number (15976584).

Almost surely, 2^401608845 is an apocalyptic number.

401608845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401608845 is a deficient number, since it is larger than the sum of its proper divisors (365267187).

401608845 is a wasteful number, since it uses less digits than its factorization.

401608845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002 (or 7999 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 401608845 is about 20040.1807626578. The cubic root of 401608845 is about 737.7928175554.

The spelling of 401608845 in words is "four hundred one million, six hundred eight thousand, eight hundred forty-five".