805140252 has 36 divisors (see below), whose sum is σ = 2325961456. Its totient is φ = 230040000.

The previous prime is 805140251. The next prime is 805140289. The reversal of 805140252 is 252041508.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805140251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597249 + ... + 1597752.

Almost surely, 2^805140252 is an apocalyptic number.

It is an amenable number.

805140252 is an abundant number, since it is smaller than the sum of its proper divisors (1520821204).

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

805140252 is a wasteful number, since it uses less digits than its factorization.

805140252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195018 (or 3195013 counting only the distinct ones).

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

The square root of 805140252 is about 28374.9934273120. The cubic root of 805140252 is about 930.3017681828.

The spelling of 805140252 in words is "eight hundred five million, one hundred forty thousand, two hundred fifty-two".