20467072 has 16 divisors (see below), whose sum is σ = 40774500. Its totient is φ = 10233472.

The previous prime is 20467061. The next prime is 20467091. The reversal of 20467072 is 27076402.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 20467072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79822 + ... + 80077.

Almost surely, 2^20467072 is an apocalyptic number.

It is an amenable number.

20467072 is a deficient number, since it is larger than the sum of its proper divisors (20307428).

20467072 is an equidigital number, since it uses as much as digits as its factorization.

20467072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159913 (or 159901 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20467072 is about 4524.0548184123. The cubic root of 20467072 is about 273.5385701603.

It can be divided in two parts, 204 and 67072, that added together give a palindrome (67276).

The spelling of 20467072 in words is "twenty million, four hundred sixty-seven thousand, seventy-two".