19875650 has 24 divisors (see below), whose sum is σ = 38164224. Its totient is φ = 7693200.

The previous prime is 19875649. The next prime is 19875659. The reversal of 19875650 is 5657891.

It is a junction number, because it is equal to n+sod(n) for n = 19875598 and 19875607.

It is not an unprimeable number, because it can be changed into a prime (19875659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4862 + ... + 7961.

It is an arithmetic number, because the mean of its divisors is an integer number (1590176).

Almost surely, 2^19875650 is an apocalyptic number.

19875650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19875650 is a deficient number, since it is larger than the sum of its proper divisors (18288574).

19875650 is a wasteful number, since it uses less digits than its factorization.

19875650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12866 (or 12861 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 19875650 is about 4458.2115248158. The cubic root of 19875650 is about 270.8780286525.

The spelling of 19875650 in words is "nineteen million, eight hundred seventy-five thousand, six hundred fifty".