40212044 has 12 divisors (see below), whose sum is σ = 72273264. Its totient is φ = 19562544.

The previous prime is 40212043. The next prime is 40212047. The reversal of 40212044 is 44021204.

It is not an unprimeable number, because it can be changed into a prime (40212041) 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, 135704 + ... + 135999.

It is an arithmetic number, because the mean of its divisors is an integer number (6022772).

Almost surely, 2^40212044 is an apocalyptic number.

It is an amenable number.

40212044 is a deficient number, since it is larger than the sum of its proper divisors (32061220).

40212044 is a wasteful number, since it uses less digits than its factorization.

40212044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271744 (or 271742 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40212044 is about 6341.2967128183. The cubic root of 40212044 is about 342.5984415204.

Adding to 40212044 its reverse (44021204), we get a palindrome (84233248).

The spelling of 40212044 in words is "forty million, two hundred twelve thousand, forty-four".