40855212 has 24 divisors (see below), whose sum is σ = 105921200. Its totient is φ = 13618368.

The previous prime is 40855211. The next prime is 40855223. The reversal of 40855212 is 21255804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40855211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189037 + ... + 189252.

Almost surely, 2^40855212 is an apocalyptic number.

It is an amenable number.

40855212 is an abundant number, since it is smaller than the sum of its proper divisors (65065988).

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

40855212 is a wasteful number, since it uses less digits than its factorization.

40855212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378302 (or 378294 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 40855212 is about 6391.8081948694. The cubic root of 40855212 is about 344.4153424675.

The spelling of 40855212 in words is "forty million, eight hundred fifty-five thousand, two hundred twelve".