40424212 has 12 divisors (see below), whose sum is σ = 71902516. Its totient is φ = 19880640.

The previous prime is 40424207. The next prime is 40424233. The reversal of 40424212 is 21242404.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 28686736 = 3426^2 + 5356^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40424212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82593 + ... + 83080.

Almost surely, 2^40424212 is an apocalyptic number.

It is an amenable number.

40424212 is a deficient number, since it is larger than the sum of its proper divisors (31478304).

40424212 is a wasteful number, since it uses less digits than its factorization.

40424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165738 (or 165736 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 40424212 is about 6358.0037747708. The cubic root of 40424212 is about 343.1999276429.

Adding to 40424212 its reverse (21242404), we get a palindrome (61666616).

The spelling of 40424212 in words is "forty million, four hundred twenty-four thousand, two hundred twelve".