401975 has 12 divisors (see below), whose sum is σ = 569904. Its totient is φ = 275520.

The previous prime is 401959. The next prime is 401981. The reversal of 401975 is 579104.

It is not a de Polignac number, because 401975 - 2⁴ = 401959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 974 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (47492).

2⁴⁰¹⁹⁷⁵ is an apocalyptic number.

401975 is a deficient number, since it is larger than the sum of its proper divisors (167929).

401975 is a wasteful number, since it uses less digits than its factorization.

401975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2309 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 401975 is about 634.0149840501. The cubic root of 401975 is about 73.8016969716.

The spelling of 401975 in words is "four hundred one thousand, nine hundred seventy-five".