43053540 has 24 divisors (see below), whose sum is σ = 120550080. Its totient is φ = 11480928.

The previous prime is 43053509. The next prime is 43053553. The reversal of 43053540 is 4535034.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43053540.

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, 358720 + ... + 358839.

It is an arithmetic number, because the mean of its divisors is an integer number (5022920).

Almost surely, 2^43053540 is an apocalyptic number.

It is an amenable number.

43053540 is an abundant number, since it is smaller than the sum of its proper divisors (77496540).

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

43053540 is a wasteful number, since it uses less digits than its factorization.

43053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717571 (or 717569 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 43053540 is about 6561.5196410588. The cubic root of 43053540 is about 350.4851503304.

Adding to 43053540 its reverse (4535034), we get a palindrome (47588574).

The spelling of 43053540 in words is "forty-three million, fifty-three thousand, five hundred forty".