401026 has 4 divisors (see below), whose sum is σ = 601542. Its totient is φ = 200512.

The previous prime is 401017. The next prime is 401029. The reversal of 401026 is 620104.

401026 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 378225 + 22801 = 615^2 + 151^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 400997 and 401015.

It is not an unprimeable number, because it can be changed into a prime (401029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100255 + ... + 100258.

2⁴⁰¹⁰²⁶ is an apocalyptic number.

401026 is a deficient number, since it is larger than the sum of its proper divisors (200516).

401026 is a wasteful number, since it uses less digits than its factorization.

401026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200515.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 401026 is about 633.2661367861. The cubic root of 401026 is about 73.7435731257.

The spelling of 401026 in words is "four hundred one thousand, twenty-six".