401183901 has 32 divisors (see below), whose sum is σ = 631048320. Its totient is φ = 251027712.

The previous prime is 401183899. The next prime is 401183921. The reversal of 401183901 is 109381104.

It is not a de Polignac number, because 401183901 - 2¹ = 401183899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401183921) 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 31 ways as a sum of consecutive naturals, for example, 202351 + ... + 204323.

It is an arithmetic number, because the mean of its divisors is an integer number (19720260).

Almost surely, 2^401183901 is an apocalyptic number.

It is an amenable number.

401183901 is a deficient number, since it is larger than the sum of its proper divisors (229864419).

401183901 is a wasteful number, since it uses less digits than its factorization.

401183901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 401183901 is about 20029.5756570128. The cubic root of 401183901 is about 737.5325051650.

The spelling of 401183901 in words is "four hundred one million, one hundred eighty-three thousand, nine hundred one".