43132040 has 32 divisors (see below), whose sum is σ = 110911680. Its totient is φ = 14788032.

The previous prime is 43132031. The next prime is 43132049. The reversal of 43132040 is 4023134.

It is an interprime number because it is at equal distance from previous prime (43132031) and next prime (43132049).

It is not an unprimeable number, because it can be changed into a prime (43132049) 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, 76742 + ... + 77301.

It is an arithmetic number, because the mean of its divisors is an integer number (3465990).

Almost surely, 2^43132040 is an apocalyptic number.

43132040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43132040 is an abundant number, since it is smaller than the sum of its proper divisors (67779640).

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

43132040 is a wasteful number, since it uses less digits than its factorization.

43132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154061 (or 154057 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 43132040 is about 6567.4987628472. The cubic root of 43132040 is about 350.6980354929.

Adding to 43132040 its reverse (4023134), we get a palindrome (47155174).

The spelling of 43132040 in words is "forty-three million, one hundred thirty-two thousand, forty".