20470752 has 192 divisors, whose sum is σ = 66528000. Its totient is φ = 6096384.

The previous prime is 20470739. The next prime is 20470753. The reversal of 20470752 is 25707402.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20470753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476043 + ... + 476085.

It is an arithmetic number, because the mean of its divisors is an integer number (346500).

Almost surely, 2^20470752 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 20470752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33264000).

20470752 is an abundant number, since it is smaller than the sum of its proper divisors (46057248).

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

20470752 is a wasteful number, since it uses less digits than its factorization.

20470752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 20470752 is about 4524.4615149209. The cubic root of 20470752 is about 273.5549633473.

The spelling of 20470752 in words is "twenty million, four hundred seventy thousand, seven hundred fifty-two".