401306005 has 8 divisors (see below), whose sum is σ = 497101824. Its totient is φ = 310688400.

The previous prime is 401305999. The next prime is 401306051. The reversal of 401306005 is 500603104.

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

It is not a de Polignac number, because 401306005 - 2³ = 401305997 is a prime.

It is a super-2 number, since 2×401306005² = 322093019298120050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294381 + ... + 1294690.

It is an arithmetic number, because the mean of its divisors is an integer number (62137728).

Almost surely, 2^401306005 is an apocalyptic number.

It is an amenable number.

401306005 is a deficient number, since it is larger than the sum of its proper divisors (95795819).

401306005 is a wasteful number, since it uses less digits than its factorization.

401306005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589107.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 401306005 is about 20032.6235176524. The cubic root of 401306005 is about 737.6073225027.

Adding to 401306005 its reverse (500603104), we get a palindrome (901909109).

The spelling of 401306005 in words is "four hundred one million, three hundred six thousand, five".