804742212 has 12 divisors (see below), whose sum is σ = 1877731856. Its totient is φ = 268247400.

The previous prime is 804742189. The next prime is 804742217. The reversal of 804742212 is 212247408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×804742212² = 1295220055549305888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 804742212.

It is not an unprimeable number, because it can be changed into a prime (804742217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33530914 + ... + 33530937.

Almost surely, 2^804742212 is an apocalyptic number.

It is an amenable number.

804742212 is an abundant number, since it is smaller than the sum of its proper divisors (1072989644).

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

804742212 is a wasteful number, since it uses less digits than its factorization.

804742212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67061858 (or 67061856 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 804742212 is about 28367.9786378938. The cubic root of 804742212 is about 930.1484374004.

The spelling of 804742212 in words is "eight hundred four million, seven hundred forty-two thousand, two hundred twelve".