220503040 has 44 divisors (see below), whose sum is σ = 528961176. Its totient is φ = 88199168.

The previous prime is 220502993. The next prime is 220503061. The reversal of 220503040 is 40305022.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 16414 + ... + 26653.

Almost surely, 2^220503040 is an apocalyptic number.

220503040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220503040 is an abundant number, since it is smaller than the sum of its proper divisors (308458136).

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

220503040 is an equidigital number, since it uses as much as digits as its factorization.

220503040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43092 (or 43074 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 220503040 is about 14849.3447666892. The cubic root of 220503040 is about 604.1408381718.

Adding to 220503040 its reverse (40305022), we get a palindrome (260808062).

The spelling of 220503040 in words is "two hundred twenty million, five hundred three thousand, forty".