401878 has 8 divisors (see below), whose sum is σ = 616968. Its totient is φ = 196224.

The previous prime is 401867. The next prime is 401887. The reversal of 401878 is 878104.

401878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251 + ... + 2422.

It is an arithmetic number, because the mean of its divisors is an integer number (77121).

2⁴⁰¹⁸⁷⁸ is an apocalyptic number.

401878 is a deficient number, since it is larger than the sum of its proper divisors (215090).

401878 is a wasteful number, since it uses less digits than its factorization.

401878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 401878 is about 633.9384828199. The cubic root of 401878 is about 73.7957601675.

It can be divided in two parts, 4018 and 78, that added together give a 12-th power (4096 = 2¹²).

The spelling of 401878 in words is "four hundred one thousand, eight hundred seventy-eight".