43398384120 has 1280 divisors, whose sum is σ = 193587609600. Its totient is φ = 8465264640.

The previous prime is 43398384119. The next prime is 43398384131. The reversal of 43398384120 is 2148389334.

43398384120 is a `hidden beast` number, since 433 + 98 + 3 + 8 + 4 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 341719497 + ... + 341719623.

It is an arithmetic number, because the mean of its divisors is an integer number (151240320).

Almost surely, 2^43398384120 is an apocalyptic number.

43398384120 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 43398384120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96793804800).

43398384120 is an abundant number, since it is smaller than the sum of its proper divisors (150189225480).

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

43398384120 is a wasteful number, since it uses less digits than its factorization.

43398384120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 43398384120 in words is "forty-three billion, three hundred ninety-eight million, three hundred eighty-four thousand, one hundred twenty".