401385 has 8 divisors (see below), whose sum is σ = 642240. Its totient is φ = 214064.

The previous prime is 401381. The next prime is 401393. The reversal of 401385 is 583104.

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

It is a cyclic number.

It is not a de Polignac number, because 401385 - 2² = 401381 is a prime.

It is a super-2 number, since 2×401385² = 322219836450, which contains 22 as substring.

401385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (401381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13365 + ... + 13394.

It is an arithmetic number, because the mean of its divisors is an integer number (80280).

2⁴⁰¹³⁸⁵ is an apocalyptic number.

It is an amenable number.

401385 is a deficient number, since it is larger than the sum of its proper divisors (240855).

401385 is a wasteful number, since it uses less digits than its factorization.

401385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26767.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 401385 is about 633.5495245046. The cubic root of 401385 is about 73.7655717383.

Adding to 401385 its reverse (583104), we get a palindrome (984489).

The spelling of 401385 in words is "four hundred one thousand, three hundred eighty-five".