43012140 has 24 divisors (see below), whose sum is σ = 120434160. Its totient is φ = 11469888.

The previous prime is 43012129. The next prime is 43012141. The reversal of 43012140 is 4121034.

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 (43012141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358375 + ... + 358494.

It is an arithmetic number, because the mean of its divisors is an integer number (5018090).

Almost surely, 2^43012140 is an apocalyptic number.

It is an amenable number.

43012140 is an abundant number, since it is smaller than the sum of its proper divisors (77422020).

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

43012140 is a wasteful number, since it uses less digits than its factorization.

43012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716881 (or 716879 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 43012140 is about 6558.3641252983. The cubic root of 43012140 is about 350.3727728995.

Adding to 43012140 its reverse (4121034), we get a palindrome (47133174).

It can be divided in two parts, 4301 and 2140, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 43012140 in words is "forty-three million, twelve thousand, one hundred forty".