40544212 has 12 divisors (see below), whose sum is σ = 71062516. Its totient is φ = 20240640.

The previous prime is 40544209. The next prime is 40544219. The reversal of 40544212 is 21244504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 17943696 = 4754^2 + 4236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40544219) 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, 4839 + ... + 10222.

Almost surely, 2^40544212 is an apocalyptic number.

It is an amenable number.

40544212 is a deficient number, since it is larger than the sum of its proper divisors (30518304).

40544212 is a wasteful number, since it uses less digits than its factorization.

40544212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15738 (or 15736 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 40544212 is about 6367.4337059761. The cubic root of 40544212 is about 343.5391905463.

Adding to 40544212 its reverse (21244504), we get a palindrome (61788716).

The spelling of 40544212 in words is "forty million, five hundred forty-four thousand, two hundred twelve".