4321371920 has 20 divisors (see below), whose sum is σ = 10047189900. Its totient is φ = 1728548736.

The previous prime is 4321371919. The next prime is 4321371941. The reversal of 4321371920 is 291731234.

It can be written as a sum of positive squares in 2 ways, for example, as 1261954576 + 3059417344 = 35524^2 + 55312^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 27008495 + ... + 27008654.

It is an arithmetic number, because the mean of its divisors is an integer number (502359495).

Almost surely, 2^4321371920 is an apocalyptic number.

4321371920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4321371920 is an abundant number, since it is smaller than the sum of its proper divisors (5725817980).

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

4321371920 is a wasteful number, since it uses less digits than its factorization.

4321371920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54017162 (or 54017156 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 4321371920 is about 65737.1426212001. The cubic root of 4321371920 is about 1628.8229574419.

The spelling of 4321371920 in words is "four billion, three hundred twenty-one million, three hundred seventy-one thousand, nine hundred twenty".