20024481 has 8 divisors (see below), whose sum is σ = 27560704. Its totient is φ = 12918960.

The previous prime is 20024339. The next prime is 20024483. The reversal of 20024481 is 18442002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20024481 - 2¹⁴ = 20008097 is a prime.

It is a super-2 number, since 2×20024481² = 801959678638722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20024483) 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, 107566 + ... + 107751.

It is an arithmetic number, because the mean of its divisors is an integer number (3445088).

Almost surely, 2^20024481 is an apocalyptic number.

It is an amenable number.

20024481 is a deficient number, since it is larger than the sum of its proper divisors (7536223).

20024481 is a wasteful number, since it uses less digits than its factorization.

20024481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215351.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20024481 is about 4474.8721769454. The cubic root of 20024481 is about 271.5524692640.

Adding to 20024481 its reverse (18442002), we get a palindrome (38466483).

The spelling of 20024481 in words is "twenty million, twenty-four thousand, four hundred eighty-one".