40566812 has 24 divisors (see below), whose sum is σ = 83404272. Its totient is φ = 17020800.

The previous prime is 40566809. The next prime is 40566829. The reversal of 40566812 is 21866504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34889 + ... + 36032.

It is an arithmetic number, because the mean of its divisors is an integer number (3475178).

Almost surely, 2^40566812 is an apocalyptic number.

It is an amenable number.

40566812 is an abundant number, since it is smaller than the sum of its proper divisors (42837460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40566812 is a wasteful number, since it uses less digits than its factorization.

40566812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70949 (or 70947 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 40566812 is about 6369.2081140437. The cubic root of 40566812 is about 343.6030101248.

The spelling of 40566812 in words is "forty million, five hundred sixty-six thousand, eight hundred twelve".