2430221920 has 48 divisors (see below), whose sum is σ = 6561602208. Its totient is φ = 833218560.

The previous prime is 2430221897. The next prime is 2430221971. The reversal of 2430221920 is 291220342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083801 + ... + 1086040.

It is an arithmetic number, because the mean of its divisors is an integer number (136700046).

Almost surely, 2^2430221920 is an apocalyptic number.

2430221920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2430221920 is an abundant number, since it is smaller than the sum of its proper divisors (4131380288).

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

2430221920 is a wasteful number, since it uses less digits than its factorization.

2430221920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169863 (or 2169855 counting only the distinct ones).

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

The square root of 2430221920 is about 49297.2810609267. The cubic root of 2430221920 is about 1344.4623491963.

The spelling of 2430221920 in words is "two billion, four hundred thirty million, two hundred twenty-one thousand, nine hundred twenty".