401060665 has 8 divisors (see below), whose sum is σ = 489162888. Its totient is φ = 315588480.

The previous prime is 401060663. The next prime is 401060669. The reversal of 401060665 is 566060104.

It can be written as a sum of positive squares in 4 ways, for example, as 17214201 + 383846464 = 4149^2 + 19592^2 .

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

It is not a de Polignac number, because 401060665 - 2¹ = 401060663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401060663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657172 + ... + 657781.

It is an arithmetic number, because the mean of its divisors is an integer number (61145361).

Almost surely, 2^401060665 is an apocalyptic number.

It is an amenable number.

401060665 is a deficient number, since it is larger than the sum of its proper divisors (88102223).

401060665 is a wasteful number, since it uses less digits than its factorization.

401060665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315019.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 401060665 is about 20026.4990699823. The cubic root of 401060665 is about 737.4569788177.

The spelling of 401060665 in words is "four hundred one million, sixty thousand, six hundred sixty-five".