43020000 has 180 divisors, whose sum is σ = 153513360. Its totient is φ = 11424000.

The previous prime is 43019989. The next prime is 43020023. The reversal of 43020000 is 2034.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 179881 + ... + 180119.

It is an arithmetic number, because the mean of its divisors is an integer number (852852).

Almost surely, 2^43020000 is an apocalyptic number.

43020000 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 43020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76756680).

43020000 is an abundant number, since it is smaller than the sum of its proper divisors (110493360).

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

43020000 is a wasteful number, since it uses less digits than its factorization.

43020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 43020000 is about 6558.9633327226. The cubic root of 43020000 is about 350.3941138687.

Adding to 43020000 its reverse (2034), we get a palindrome (43022034).

The spelling of 43020000 in words is "forty-three million, twenty thousand".