220245924 has 24 divisors (see below), whose sum is σ = 514473120. Its totient is φ = 73334464.

The previous prime is 220245913. The next prime is 220245947. The reversal of 220245924 is 429542022.

It is a super-2 number, since 2×220245924² = 97016534077227552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220245891 and 220245900.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (21436380).

Almost surely, 2^220245924 is an apocalyptic number.

It is an amenable number.

220245924 is an abundant number, since it is smaller than the sum of its proper divisors (294227196).

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

220245924 is a wasteful number, since it uses less digits than its factorization.

220245924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20219 (or 20217 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 220245924 is about 14840.6847550913. The cubic root of 220245924 is about 603.9059288022.

Adding to 220245924 its reverse (429542022), we get a palindrome (649787946).

The spelling of 220245924 in words is "two hundred twenty million, two hundred forty-five thousand, nine hundred twenty-four".