20416272 has 40 divisors (see below), whose sum is σ = 55038144. Its totient is φ = 6509184.

The previous prime is 20416247. The next prime is 20416309. The reversal of 20416272 is 27261402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8143 + ... + 10350.

Almost surely, 2^20416272 is an apocalyptic number.

It is an amenable number.

20416272 is an abundant number, since it is smaller than the sum of its proper divisors (34621872).

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

20416272 is a wasteful number, since it uses less digits than its factorization.

20416272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18527 (or 18521 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20416272 is about 4518.4368978663. The cubic root of 20416272 is about 273.3120718474.

Adding to 20416272 its reverse (27261402), we get a palindrome (47677674).

The spelling of 20416272 in words is "twenty million, four hundred sixteen thousand, two hundred seventy-two".