40100212 has 24 divisors (see below), whose sum is σ = 75890304. Its totient is φ = 18467712.

The previous prime is 40100191. The next prime is 40100213. The reversal of 40100212 is 21200104.

40100212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40100213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3078 + ... + 9469.

It is an arithmetic number, because the mean of its divisors is an integer number (3162096).

Almost surely, 2^40100212 is an apocalyptic number.

It is an amenable number.

40100212 is a deficient number, since it is larger than the sum of its proper divisors (35790092).

40100212 is a wasteful number, since it uses less digits than its factorization.

40100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12615 (or 12613 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40100212 is about 6332.4728187336. The cubic root of 40100212 is about 342.2805513446.

Adding to 40100212 its reverse (21200104), we get a palindrome (61300316).

The spelling of 40100212 in words is "forty million, one hundred thousand, two hundred twelve".