19940850 has 48 divisors (see below), whose sum is σ = 54951840. Its totient is φ = 5317200.

The previous prime is 19940849. The next prime is 19940857. The reversal of 19940850 is 5804991.

It is not an unprimeable number, because it can be changed into a prime (19940857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6036 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (1144830).

Almost surely, 2^19940850 is an apocalyptic number.

19940850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19940850 is an abundant number, since it is smaller than the sum of its proper divisors (35010990).

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

19940850 is a wasteful number, since it uses less digits than its factorization.

19940850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14792 (or 14781 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 19940850 is about 4465.5178870989. The cubic root of 19940850 is about 271.1739010831.

The spelling of 19940850 in words is "nineteen million, nine hundred forty thousand, eight hundred fifty".