219232420 has 24 divisors (see below), whose sum is σ = 502242048. Its totient is φ = 79720800.

The previous prime is 219232417. The next prime is 219232421. The reversal of 219232420 is 24232912.

It is not an unprimeable number, because it can be changed into a prime (219232421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498036 + ... + 498475.

It is an arithmetic number, because the mean of its divisors is an integer number (20926752).

Almost surely, 2^219232420 is an apocalyptic number.

219232420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219232420 is an abundant number, since it is smaller than the sum of its proper divisors (283009628).

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

219232420 is a wasteful number, since it uses less digits than its factorization.

219232420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996531 (or 996529 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 219232420 is about 14806.4992486408. The cubic root of 219232420 is about 602.9781744844.

The spelling of 219232420 in words is "two hundred nineteen million, two hundred thirty-two thousand, four hundred twenty".