401266 has 8 divisors (see below), whose sum is σ = 604764. Its totient is φ = 199680.

The previous prime is 401243. The next prime is 401279. The reversal of 401266 is 662104.

401266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 5625 = 629^2 + 75^2 .

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

It is a super-2 number, since 2×401266² = 322028805512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306 + ... + 946.

2⁴⁰¹²⁶⁶ is an apocalyptic number.

401266 is a deficient number, since it is larger than the sum of its proper divisors (203498).

401266 is a wasteful number, since it uses less digits than its factorization.

401266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 401266 is about 633.4556022327. The cubic root of 401266 is about 73.7582811729.

The spelling of 401266 in words is "four hundred one thousand, two hundred sixty-six".