401575 has 6 divisors (see below), whose sum is σ = 497984. Its totient is φ = 321240.

The previous prime is 401567. The next prime is 401587. The reversal of 401575 is 575104.

It is not a de Polignac number, because 401575 - 2³ = 401567 is a prime.

It is a super-2 number, since 2×401575² = 322524961250, which contains 22 as substring.

It is a Duffinian number.

401575 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8007 + ... + 8056.

2⁴⁰¹⁵⁷⁵ is an apocalyptic number.

401575 is a deficient number, since it is larger than the sum of its proper divisors (96409).

401575 is a wasteful number, since it uses less digits than its factorization.

401575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16073 (or 16068 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 401575 is about 633.6994555781. The cubic root of 401575 is about 73.7772091502. Note that the first 3 decimals are identical.

Adding to 401575 its reverse (575104), we get a palindrome (976679).

The spelling of 401575 in words is "four hundred one thousand, five hundred seventy-five".