19914650 has 48 divisors (see below), whose sum is σ = 44836416. Its totient is φ = 6424320.

The previous prime is 19914649. The next prime is 19914659. The reversal of 19914650 is 5641991.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 19914650.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19914659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4277 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (934092).

Almost surely, 2^19914650 is an apocalyptic number.

19914650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19914650 is an abundant number, since it is smaller than the sum of its proper divisors (24921766).

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

19914650 is a wasteful number, since it uses less digits than its factorization.

19914650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 19914650 is about 4462.5833325553. The cubic root of 19914650 is about 271.0550851835.

The spelling of 19914650 in words is "nineteen million, nine hundred fourteen thousand, six hundred fifty".