404002066 has 8 divisors (see below), whose sum is σ = 652618764. Its totient is φ = 186462480.

The previous prime is 404002043. The next prime is 404002091. The reversal of 404002066 is 660200404.

It can be written as a sum of positive squares in 2 ways, for example, as 358155625 + 45846441 = 18925^2 + 6771^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7769245 + ... + 7769296.

Almost surely, 2^404002066 is an apocalyptic number.

404002066 is a deficient number, since it is larger than the sum of its proper divisors (248616698).

404002066 is a wasteful number, since it uses less digits than its factorization.

404002066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15538556.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 404002066 is about 20099.8026358470. The cubic root of 404002066 is about 739.2554393170.

The spelling of 404002066 in words is "four hundred four million, two thousand, sixty-six".