43425431280 has 480 divisors, whose sum is σ = 185265999360. Its totient is φ = 8852613120.

The previous prime is 43425431243. The next prime is 43425431297. The reversal of 43425431280 is 8213452434.

43425431280 is a `hidden beast` number, since 4 + 34 + 2 + 543 + 1 + 2 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2930931 + ... + 2945709.

It is an arithmetic number, because the mean of its divisors is an integer number (385970832).

Almost surely, 2^43425431280 is an apocalyptic number.

43425431280 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 43425431280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92632999680).

43425431280 is an abundant number, since it is smaller than the sum of its proper divisors (141840568080).

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

43425431280 is a wasteful number, since it uses less digits than its factorization.

43425431280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14869 (or 14860 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 43425431280 in words is "forty-three billion, four hundred twenty-five million, four hundred thirty-one thousand, two hundred eighty".