40646212 has 12 divisors (see below), whose sum is σ = 71243116. Its totient is φ = 20291040.

The previous prime is 40646173. The next prime is 40646237. The reversal of 40646212 is 21264604.

It can be written as a sum of positive squares in 2 ways, for example, as 13439556 + 27206656 = 3666^2 + 5216^2 .

It is a super-2 number, since 2×40646212² = 3304229099897888, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 5043 + ... + 10330.

Almost surely, 2^40646212 is an apocalyptic number.

It is an amenable number.

40646212 is a deficient number, since it is larger than the sum of its proper divisors (30596904).

40646212 is a wasteful number, since it uses less digits than its factorization.

40646212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16038 (or 16036 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40646212 is about 6375.4381810194. The cubic root of 40646212 is about 343.8270380725.

The spelling of 40646212 in words is "forty million, six hundred forty-six thousand, two hundred twelve".