20272748 has 12 divisors (see below), whose sum is σ = 35509320. Its totient is φ = 10127232.

The previous prime is 20272741. The next prime is 20272751. The reversal of 20272748 is 84727202.

It is a happy number.

It is a super-2 number, since 2×20272748² = 821968622943008, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20272741) 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 3 ways as a sum of consecutive naturals, for example, 6215 + ... + 8897.

It is an arithmetic number, because the mean of its divisors is an integer number (2959110).

Almost surely, 2^20272748 is an apocalyptic number.

It is an amenable number.

20272748 is a deficient number, since it is larger than the sum of its proper divisors (15236572).

20272748 is a wasteful number, since it uses less digits than its factorization.

20272748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 20272748 is about 4502.5268461165. The cubic root of 20272748 is about 272.6701145806.

The spelling of 20272748 in words is "twenty million, two hundred seventy-two thousand, seven hundred forty-eight".