19785050 has 12 divisors (see below), whose sum is σ = 36800286. Its totient is φ = 7914000.

The previous prime is 19785041. The next prime is 19785053. The reversal of 19785050 is 5058791.

It can be written as a sum of positive squares in 3 ways, for example, as 11135569 + 8649481 = 3337^2 + 2941^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19785050.

It is not an unprimeable number, because it can be changed into a prime (19785053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197801 + ... + 197900.

Almost surely, 2^19785050 is an apocalyptic number.

19785050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19785050 is a deficient number, since it is larger than the sum of its proper divisors (17015236).

19785050 is a wasteful number, since it uses less digits than its factorization.

19785050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395713 (or 395708 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 19785050 is about 4448.0388937148. The cubic root of 19785050 is about 270.4658168304.

The spelling of 19785050 in words is "nineteen million, seven hundred eighty-five thousand, fifty".