43245740 has 24 divisors (see below), whose sum is σ = 90948480. Its totient is φ = 17273088.

The previous prime is 43245737. The next prime is 43245749. The reversal of 43245740 is 4754234.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (43245749) 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, 19109 + ... + 21251.

It is an arithmetic number, because the mean of its divisors is an integer number (3789520).

Almost surely, 2^43245740 is an apocalyptic number.

It is an amenable number.

43245740 is an abundant number, since it is smaller than the sum of its proper divisors (47702740).

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

43245740 is a wasteful number, since it uses less digits than its factorization.

43245740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161 (or 3159 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 43245740 is about 6576.1493292047. The cubic root of 43245740 is about 351.0059224710.

Adding to 43245740 its reverse (4754234), we get a palindrome (47999974).

The spelling of 43245740 in words is "forty-three million, two hundred forty-five thousand, seven hundred forty".