40849812 has 24 divisors (see below), whose sum is σ = 105907200. Its totient is φ = 13616568.

The previous prime is 40849789. The next prime is 40849819. The reversal of 40849812 is 21894804.

40849812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40849819) 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, 189012 + ... + 189227.

It is an arithmetic number, because the mean of its divisors is an integer number (4412800).

Almost surely, 2^40849812 is an apocalyptic number.

It is an amenable number.

40849812 is an abundant number, since it is smaller than the sum of its proper divisors (65057388).

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

40849812 is a wasteful number, since it uses less digits than its factorization.

40849812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378252 (or 378244 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 40849812 is about 6391.3857652312. The cubic root of 40849812 is about 344.4001675387.

The spelling of 40849812 in words is "forty million, eight hundred forty-nine thousand, eight hundred twelve".