40565212 has 12 divisors (see below), whose sum is σ = 71045800. Its totient is φ = 20266416.

The previous prime is 40565201. The next prime is 40565219. The reversal of 40565212 is 21256504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40565219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2923 + ... + 9469.

Almost surely, 2^40565212 is an apocalyptic number.

It is an amenable number.

40565212 is a deficient number, since it is larger than the sum of its proper divisors (30480588).

40565212 is a wasteful number, since it uses less digits than its factorization.

40565212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100 (or 8098 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 40565212 is about 6369.0825084937. The cubic root of 40565212 is about 343.5984927043.

The spelling of 40565212 in words is "forty million, five hundred sixty-five thousand, two hundred twelve".