401355 has 20 divisors (see below), whose sum is σ = 720192. Its totient is φ = 213840.

The previous prime is 401347. The next prime is 401371. The reversal of 401355 is 553104.

It is not a de Polignac number, because 401355 - 2³ = 401347 is a prime.

It is a super-2 number, since 2×401355² = 322171672050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91 + ... + 900.

2⁴⁰¹³⁵⁵ is an apocalyptic number.

401355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

401355 is a deficient number, since it is larger than the sum of its proper divisors (318837).

401355 is an equidigital number, since it uses as much as digits as its factorization.

401355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 401355 is about 633.5258479336. The cubic root of 401355 is about 73.7637339165.

Adding to 401355 its reverse (553104), we get a palindrome (954459).

The spelling of 401355 in words is "four hundred one thousand, three hundred fifty-five".