20750048 has 72 divisors (see below), whose sum is σ = 47056464. Its totient is φ = 8983040.

The previous prime is 20750027. The next prime is 20750069. The reversal of 20750048 is 84005702.

It is an interprime number because it is at equal distance from previous prime (20750027) and next prime (20750069).

It is a junction number, because it is equal to n+sod(n) for n = 20749999 and 20750026.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 88940 + ... + 89172.

It is an arithmetic number, because the mean of its divisors is an integer number (653562).

Almost surely, 2^20750048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20750048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23528232).

20750048 is an abundant number, since it is smaller than the sum of its proper divisors (26306416).

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

20750048 is a wasteful number, since it uses less digits than its factorization.

20750048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20750048 is about 4555.2220582536. Note that the first 3 decimals coincide. The cubic root of 20750048 is about 274.7934448933.

The spelling of 20750048 in words is "twenty million, seven hundred fifty thousand, forty-eight".