4359121920 has 440 divisors, whose sum is σ = 16335453024. Its totient is φ = 1109458944.

The previous prime is 4359121909. The next prime is 4359121933. The reversal of 4359121920 is 291219534.

4359121920 is a `hidden beast` number, since 43 + 591 + 2 + 1 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9538332 + ... + 9538788.

Almost surely, 2^4359121920 is an apocalyptic number.

4359121920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4359121920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8167726512).

4359121920 is an abundant number, since it is smaller than the sum of its proper divisors (11976331104).

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

4359121920 is a wasteful number, since it uses less digits than its factorization.

4359121920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 4359121920 is about 66023.6466729913. The cubic root of 4359121920 is about 1633.5521565307.

The spelling of 4359121920 in words is "four billion, three hundred fifty-nine million, one hundred twenty-one thousand, nine hundred twenty".