20541472 has 24 divisors (see below), whose sum is σ = 46218816. Its totient is φ = 8803392.

The previous prime is 20541449. The next prime is 20541497. The reversal of 20541472 is 27414502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45628 + ... + 46075.

It is an arithmetic number, because the mean of its divisors is an integer number (1925784).

Almost surely, 2^20541472 is an apocalyptic number.

It is an amenable number.

20541472 is an abundant number, since it is smaller than the sum of its proper divisors (25677344).

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

20541472 is an equidigital number, since it uses as much as digits as its factorization.

20541472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91720 (or 91712 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20541472 is about 4532.2700713881. The cubic root of 20541472 is about 273.8696166923.

Adding to 20541472 its reverse (27414502), we get a palindrome (47955974).

The spelling of 20541472 in words is "twenty million, five hundred forty-one thousand, four hundred seventy-two".