20073750 has 80 divisors (see below), whose sum is σ = 51620976. Its totient is φ = 5200000.

The previous prime is 20073749. The next prime is 20073769. The reversal of 20073750 is 5737002.

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 20073750.

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 39 ways as a sum of consecutive naturals, for example, 198700 + ... + 198800.

Almost surely, 2^20073750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20073750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25810488).

20073750 is an abundant number, since it is smaller than the sum of its proper divisors (31547226).

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

20073750 is a wasteful number, since it uses less digits than its factorization.

20073750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 20073750 is about 4480.3738683284. The cubic root of 20073750 is about 271.7749995550.

The spelling of 20073750 in words is "twenty million, seventy-three thousand, seven hundred fifty".