43620000 has 120 divisors (see below), whose sum is σ = 143279136. Its totient is φ = 11616000.

The previous prime is 43619971. The next prime is 43620001. The reversal of 43620000 is 2634.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (43620001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59637 + ... + 60363.

Almost surely, 2^43620000 is an apocalyptic number.

43620000 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 43620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71639568).

43620000 is an abundant number, since it is smaller than the sum of its proper divisors (99659136).

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

43620000 is an equidigital number, since it uses as much as digits as its factorization.

43620000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 43620000 is about 6604.5438903833. The cubic root of 43620000 is about 352.0155812662.

Adding to 43620000 its reverse (2634), we get a palindrome (43622634).

The spelling of 43620000 in words is "forty-three million, six hundred twenty thousand".