43278234720 has 288 divisors, whose sum is σ = 159268032000. Its totient is φ = 9849498624.

The previous prime is 43278234719. The next prime is 43278234737. The reversal of 43278234720 is 2743287234.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5617431 + ... + 5625129.

It is an arithmetic number, because the mean of its divisors is an integer number (553014000).

Almost surely, 2^43278234720 is an apocalyptic number.

43278234720 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 43278234720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79634016000).

43278234720 is an abundant number, since it is smaller than the sum of its proper divisors (115989797280).

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

43278234720 is a wasteful number, since it uses less digits than its factorization.

43278234720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970 (or 7955 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 43278234720 in words is "forty-three billion, two hundred seventy-eight million, two hundred thirty-four thousand, seven hundred twenty".