43272740 has 24 divisors (see below), whose sum is σ = 103854912. Its totient is φ = 14836320.

The previous prime is 43272739. The next prime is 43272787. The reversal of 43272740 is 4727234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154406 + ... + 154685.

It is an arithmetic number, because the mean of its divisors is an integer number (4327288).

Almost surely, 2^43272740 is an apocalyptic number.

It is an amenable number.

43272740 is an abundant number, since it is smaller than the sum of its proper divisors (60582172).

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

43272740 is a wasteful number, since it uses less digits than its factorization.

43272740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309107 (or 309105 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 43272740 is about 6578.2018819735. The cubic root of 43272740 is about 351.0789561638.

Adding to 43272740 its reverse (4727234), we get a palindrome (47999974).

The spelling of 43272740 in words is "forty-three million, two hundred seventy-two thousand, seven hundred forty".