40668202 has 4 divisors (see below), whose sum is σ = 61002306. Its totient is φ = 20334100.

The previous prime is 40668197. The next prime is 40668223. The reversal of 40668202 is 20286604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33166081 + 7502121 = 5759^2 + 2739^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167049 + ... + 10167052.

Almost surely, 2^40668202 is an apocalyptic number.

40668202 is a deficient number, since it is larger than the sum of its proper divisors (20334104).

40668202 is a wasteful number, since it uses less digits than its factorization.

40668202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20334103.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40668202 is about 6377.1625351719. The cubic root of 40668202 is about 343.8890314959.

The spelling of 40668202 in words is "forty million, six hundred sixty-eight thousand, two hundred two".