19850812 has 6 divisors (see below), whose sum is σ = 34738928. Its totient is φ = 9925404.

The previous prime is 19850807. The next prime is 19850851. The reversal of 19850812 is 21805891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2481348 + ... + 2481355.

Almost surely, 2^19850812 is an apocalyptic number.

It is an amenable number.

19850812 is a deficient number, since it is larger than the sum of its proper divisors (14888116).

19850812 is a wasteful number, since it uses less digits than its factorization.

19850812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962707 (or 4962705 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 19850812 is about 4455.4250077855. The cubic root of 19850812 is about 270.7651455846.

The spelling of 19850812 in words is "nineteen million, eight hundred fifty thousand, eight hundred twelve".