20752072 has 32 divisors (see below), whose sum is σ = 44297280. Its totient is φ = 9021760.

The previous prime is 20752063. The next prime is 20752073. The reversal of 20752072 is 27025702.

It is not an unprimeable number, because it can be changed into a prime (20752073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103 + ... + 7150.

It is an arithmetic number, because the mean of its divisors is an integer number (1384290).

Almost surely, 2^20752072 is an apocalyptic number.

20752072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20752072 is an abundant number, since it is smaller than the sum of its proper divisors (23545208).

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

20752072 is a wasteful number, since it uses less digits than its factorization.

20752072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10293 (or 10289 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 20752072 is about 4555.4442154416. Note that the first 3 decimals coincide. The cubic root of 20752072 is about 274.8023792317.

Adding to 20752072 its reverse (27025702), we get a palindrome (47777774).

The spelling of 20752072 in words is "twenty million, seven hundred fifty-two thousand, seventy-two".