336406221 has 12 divisors (see below), whose sum is σ = 491775648. Its totient is φ = 221568264.

The previous prime is 336406207. The next prime is 336406237. The reversal of 336406221 is 122604633.

336406221 is a `hidden beast` number, since 3 + 36 + 4 + 0 + 622 + 1 = 666.

It is not a de Polignac number, because 336406221 - 2⁷ = 336406093 is a prime.

It is a super-2 number, since 2×336406221² = 226338291055001682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336406261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224425 + ... + 225918.

It is an arithmetic number, because the mean of its divisors is an integer number (40981304).

Almost surely, 2^336406221 is an apocalyptic number.

It is an amenable number.

336406221 is a deficient number, since it is larger than the sum of its proper divisors (155369427).

336406221 is a wasteful number, since it uses less digits than its factorization.

336406221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450432 (or 450429 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 336406221 is about 18341.3800189626. The cubic root of 336406221 is about 695.4853818256.

The spelling of 336406221 in words is "three hundred thirty-six million, four hundred six thousand, two hundred twenty-one".