43140006 has 64 divisors (see below), whose sum is σ = 118003200. Its totient is φ = 11376288.

The previous prime is 43140001. The next prime is 43140011. The reversal of 43140006 is 60004134.

It is an interprime number because it is at equal distance from previous prime (43140001) and next prime (43140011).

It is a super-2 number, since 2×43140006² = 3722120235360072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140001) 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 31 ways as a sum of consecutive naturals, for example, 525 + ... + 9303.

It is an arithmetic number, because the mean of its divisors is an integer number (1843800).

Almost surely, 2^43140006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43140006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59001600).

43140006 is an abundant number, since it is smaller than the sum of its proper divisors (74863194).

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

43140006 is a wasteful number, since it uses less digits than its factorization.

43140006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810 (or 8804 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 43140006 is about 6568.1052062220. The cubic root of 43140006 is about 350.7196241509.

The spelling of 43140006 in words is "forty-three million, one hundred forty thousand, six".