401406085 has 16 divisors (see below), whose sum is σ = 494150400. Its totient is φ = 312878016.

The previous prime is 401406077. The next prime is 401406107. The reversal of 401406085 is 580604104.

It is a cyclic number.

It is not a de Polignac number, because 401406085 - 2³ = 401406077 is a prime.

It is a super-2 number, since 2×401406085² = 322253690150054450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50086 + ... + 57544.

It is an arithmetic number, because the mean of its divisors is an integer number (30884400).

Almost surely, 2^401406085 is an apocalyptic number.

It is an amenable number.

401406085 is a deficient number, since it is larger than the sum of its proper divisors (92744315).

401406085 is a wasteful number, since it uses less digits than its factorization.

401406085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 401406085 is about 20035.1212873793. The cubic root of 401406085 is about 737.6686336586.

It can be divided in two parts, 40140 and 6085, that added together give a square (46225 = 215²).

The spelling of 401406085 in words is "four hundred one million, four hundred six thousand, eighty-five".