43530045 has 64 divisors (see below), whose sum is σ = 81715200. Its totient is φ = 19595520.

The previous prime is 43530043. The next prime is 43530049. The reversal of 43530045 is 54003534.

It is a happy number.

It is not a de Polignac number, because 43530045 - 2¹ = 43530043 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43529997 and 43530024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43530043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114666 + ... + 115044.

It is an arithmetic number, because the mean of its divisors is an integer number (1276800).

Almost surely, 2^43530045 is an apocalyptic number.

It is an amenable number.

43530045 is a deficient number, since it is larger than the sum of its proper divisors (38185155).

43530045 is a wasteful number, since it uses less digits than its factorization.

43530045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450.

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

The square root of 43530045 is about 6597.7302915472. The cubic root of 43530045 is about 351.7734342852.

Adding to 43530045 its reverse (54003534), we get a palindrome (97533579).

The spelling of 43530045 in words is "forty-three million, five hundred thirty thousand, forty-five".