43240000 has 140 divisors (see below), whose sum is σ = 114263424. Its totient is φ = 16192000.

The previous prime is 43239971. The next prime is 43240003. The reversal of 43240000 is 4234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 919977 + ... + 920023.

Almost surely, 2^43240000 is an apocalyptic number.

43240000 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 43240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57131712).

43240000 is an abundant number, since it is smaller than the sum of its proper divisors (71023424).

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

43240000 is an equidigital number, since it uses as much as digits as its factorization.

43240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 43240000 is about 6575.7128891094. The cubic root of 43240000 is about 350.9903921310.

Adding to 43240000 its reverse (4234), we get a palindrome (43244234).

It can be divided in two parts, 4 and 3240000, that multiplied together give a 4-th power (12960000 = 60⁴).

The spelling of 43240000 in words is "forty-three million, two hundred forty thousand".