19812050 has 24 divisors (see below), whose sum is σ = 37217856. Its totient is φ = 7845840.

The previous prime is 19812049. The next prime is 19812071. The reversal of 19812050 is 5021891.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3227 + ... + 7073.

It is an arithmetic number, because the mean of its divisors is an integer number (1550744).

Almost surely, 2^19812050 is an apocalyptic number.

19812050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19812050 is a deficient number, since it is larger than the sum of its proper divisors (17405806).

19812050 is a wasteful number, since it uses less digits than its factorization.

19812050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3957 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 19812050 is about 4451.0729043681. The cubic root of 19812050 is about 270.5887928099.

The spelling of 19812050 in words is "nineteen million, eight hundred twelve thousand, fifty".