401415 has 16 divisors (see below), whose sum is σ = 734208. Its totient is φ = 183456.

The previous prime is 401411. The next prime is 401417. The reversal of 401415 is 514104.

It is not a de Polignac number, because 401415 - 2² = 401411 is a prime.

It is a super-2 number, since 2×401415² = 322268004450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 401394 and 401403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1807 + ... + 2016.

It is an arithmetic number, because the mean of its divisors is an integer number (45888).

2⁴⁰¹⁴¹⁵ is an apocalyptic number.

401415 is a deficient number, since it is larger than the sum of its proper divisors (332793).

401415 is a wasteful number, since it uses less digits than its factorization.

401415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 401415 is about 633.5732001908. The cubic root of 401415 is about 73.7674094685.

Adding to 401415 its reverse (514104), we get a palindrome (915519).

The spelling of 401415 in words is "four hundred one thousand, four hundred fifteen".