43545454 has 16 divisors (see below), whose sum is σ = 69371280. Its totient is φ = 20442240.

The previous prime is 43545407. The next prime is 43545457. The reversal of 43545454 is 45454534.

It is a super-2 number, since 2×43545454² = 3792413128132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43545457) 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, 777 + ... + 9364.

It is an arithmetic number, because the mean of its divisors is an integer number (4335705).

Almost surely, 2^43545454 is an apocalyptic number.

43545454 is a deficient number, since it is larger than the sum of its proper divisors (25825826).

43545454 is a wasteful number, since it uses less digits than its factorization.

43545454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10275.

The product of its digits is 96000, while the sum is 34.

The square root of 43545454 is about 6598.8979382924. The cubic root of 43545454 is about 351.8149369407.

Adding to 43545454 its reverse (45454534), we get a palindrome (88999988).

The spelling of 43545454 in words is "forty-three million, five hundred forty-five thousand, four hundred fifty-four".