40881212 has 24 divisors (see below), whose sum is σ = 74898432. Its totient is φ = 19487600.

The previous prime is 40881193. The next prime is 40881227. The reversal of 40881212 is 21218804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39137 + ... + 40167.

It is an arithmetic number, because the mean of its divisors is an integer number (3120768).

Almost surely, 2^40881212 is an apocalyptic number.

It is an amenable number.

40881212 is a deficient number, since it is larger than the sum of its proper divisors (34017220).

40881212 is a wasteful number, since it uses less digits than its factorization.

40881212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 40881212 is about 6393.8417246598. The cubic root of 40881212 is about 344.4883882271.

The spelling of 40881212 in words is "forty million, eight hundred eighty-one thousand, two hundred twelve".