220824420 has 24 divisors (see below), whose sum is σ = 618308544. Its totient is φ = 58886496.

The previous prime is 220824391. The next prime is 220824427. The reversal of 220824420 is 24428022.

It is not an unprimeable number, because it can be changed into a prime (220824427) 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, 1840144 + ... + 1840263.

It is an arithmetic number, because the mean of its divisors is an integer number (25762856).

Almost surely, 2^220824420 is an apocalyptic number.

220824420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220824420 is an abundant number, since it is smaller than the sum of its proper divisors (397484124).

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

220824420 is a wasteful number, since it uses less digits than its factorization.

220824420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680419 (or 3680417 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 220824420 is about 14860.1621794649. The cubic root of 220824420 is about 604.4342045445.

The spelling of 220824420 in words is "two hundred twenty million, eight hundred twenty-four thousand, four hundred twenty".