20190750 has 32 divisors (see below), whose sum is σ = 50397984. Its totient is φ = 5384000.

The previous prime is 20190743. The next prime is 20190763. The reversal of 20190750 is 5709102.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20190750.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12711 + ... + 14210.

It is an arithmetic number, because the mean of its divisors is an integer number (1574937).

Almost surely, 2^20190750 is an apocalyptic number.

20190750 is an abundant number, since it is smaller than the sum of its proper divisors (30207234).

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

20190750 is a wasteful number, since it uses less digits than its factorization.

20190750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941 (or 26931 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 20190750 is about 4493.4118440223. The cubic root of 20190750 is about 272.3019912158.

Adding to 20190750 its reverse (5709102), we get a palindrome (25899852).

It can be divided in two parts, 201 and 90750, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 20190750 in words is "twenty million, one hundred ninety thousand, seven hundred fifty".