782243812 has 12 divisors (see below), whose sum is σ = 1564487680. Its totient is φ = 335247336.

The previous prime is 782243753. The next prime is 782243821. The reversal of 782243812 is 218342287.

782243812 is an admirable number.

It is a super-2 number, since 2×782243812² = 1223810762824582688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13968612 + ... + 13968667.

Almost surely, 2^782243812 is an apocalyptic number.

It is an amenable number.

782243812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

782243812 is a wasteful number, since it uses less digits than its factorization.

782243812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27937290 (or 27937288 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 782243812 is about 27968.6219181425. The cubic root of 782243812 is about 921.3982408838.

The spelling of 782243812 in words is "seven hundred eighty-two million, two hundred forty-three thousand, eight hundred twelve".