40255212 has 24 divisors (see below), whose sum is σ = 94103856. Its totient is φ = 13393408.

The previous prime is 40255207. The next prime is 40255231. The reversal of 40255212 is 21255204.

It is a happy 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, 4288 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (3920994).

Almost surely, 2^40255212 is an apocalyptic number.

It is an amenable number.

40255212 is an abundant number, since it is smaller than the sum of its proper divisors (53848644).

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

40255212 is a wasteful number, since it uses less digits than its factorization.

40255212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257 (or 6255 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40255212 is about 6344.6995200719. The cubic root of 40255212 is about 342.7209918732.

The spelling of 40255212 in words is "forty million, two hundred fifty-five thousand, two hundred twelve".