20473750 has 40 divisors (see below), whose sum is σ = 41892840. Its totient is φ = 7440000.

The previous prime is 20473723. The next prime is 20473751. The reversal of 20473750 is 5737402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13006 + ... + 14494.

It is an arithmetic number, because the mean of its divisors is an integer number (1047321).

Almost surely, 2^20473750 is an apocalyptic number.

20473750 is an abundant number, since it is smaller than the sum of its proper divisors (21419090).

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

20473750 is a wasteful number, since it uses less digits than its factorization.

20473750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20473750 is about 4524.7928129363. The cubic root of 20473750 is about 273.5683169969.

The spelling of 20473750 in words is "twenty million, four hundred seventy-three thousand, seven hundred fifty".