40566212 has 6 divisors (see below), whose sum is σ = 70990878. Its totient is φ = 20283104.

The previous prime is 40566193. The next prime is 40566221. The reversal of 40566212 is 21266504.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 10601536 = 5474^2 + 3256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070773 + ... + 5070780.

It is an arithmetic number, because the mean of its divisors is an integer number (11831813).

Almost surely, 2^40566212 is an apocalyptic number.

It is an amenable number.

40566212 is a deficient number, since it is larger than the sum of its proper divisors (30424666).

40566212 is a wasteful number, since it uses less digits than its factorization.

40566212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141557 (or 10141555 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40566212 is about 6369.1610122527. The cubic root of 40566212 is about 343.6013161060.

The spelling of 40566212 in words is "forty million, five hundred sixty-six thousand, two hundred twelve".