43620720 has 320 divisors, whose sum is σ = 167989248. Its totient is φ = 9216000.

The previous prime is 43620701. The next prime is 43620721. The reversal of 43620720 is 2702634.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43620721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1063900 + ... + 1063940.

Almost surely, 2^43620720 is an apocalyptic number.

43620720 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 43620720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83994624).

43620720 is an abundant number, since it is smaller than the sum of its proper divisors (124368528).

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

43620720 is a wasteful number, since it uses less digits than its factorization.

43620720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 43620720 is about 6604.5983980860. The cubic root of 43620720 is about 352.0175180676.

The spelling of 43620720 in words is "forty-three million, six hundred twenty thousand, seven hundred twenty".