40522212 has 36 divisors (see below), whose sum is σ = 107824080. Its totient is φ = 12796272.

The previous prime is 40522201. The next prime is 40522213. The reversal of 40522212 is 21222504.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40522213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28938 + ... + 30305.

Almost surely, 2^40522212 is an apocalyptic number.

It is an amenable number.

40522212 is an abundant number, since it is smaller than the sum of its proper divisors (67301868).

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

40522212 is a wasteful number, since it uses less digits than its factorization.

40522212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59272 (or 59267 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40522212 is about 6365.7059310025. The cubic root of 40522212 is about 343.4770425088.

Adding to 40522212 its reverse (21222504), we get a palindrome (61744716).

The spelling of 40522212 in words is "forty million, five hundred twenty-two thousand, two hundred twelve".