43980720 has 160 divisors (see below), whose sum is σ = 159418368. Its totient is φ = 9821184.

The previous prime is 43980719. The next prime is 43980721. The reversal of 43980720 is 2708934.

It is an interprime number because it is at equal distance from previous prime (43980719) and next prime (43980721).

It is not an unprimeable number, because it can be changed into a prime (43980721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78682 + ... + 79238.

Almost surely, 2^43980720 is an apocalyptic number.

43980720 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 43980720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79709184).

43980720 is an abundant number, since it is smaller than the sum of its proper divisors (115437648).

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

43980720 is a wasteful number, since it uses less digits than its factorization.

43980720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 43980720 is about 6631.7961367943. The cubic root of 43980720 is about 352.9832615175.

The spelling of 43980720 in words is "forty-three million, nine hundred eighty thousand, seven hundred twenty".