43572045 has 32 divisors (see below), whose sum is σ = 76492800. Its totient is φ = 21003840.

The previous prime is 43572017. The next prime is 43572047. The reversal of 43572045 is 54027534.

43572045 = T₁₄₇ + T₁₄₈ + ... + T₆₄₁.

It is not a de Polignac number, because 43572045 - 2⁵ = 43572013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43572047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32172 + ... + 33498.

It is an arithmetic number, because the mean of its divisors is an integer number (2390400).

Almost surely, 2^43572045 is an apocalyptic number.

It is an amenable number.

43572045 is a deficient number, since it is larger than the sum of its proper divisors (32920755).

43572045 is a wasteful number, since it uses less digits than its factorization.

43572045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 43572045 is about 6600.9124369287. The cubic root of 43572045 is about 351.8865342147.

Adding to 43572045 its reverse (54027534), we get a palindrome (97599579).

The spelling of 43572045 in words is "forty-three million, five hundred seventy-two thousand, forty-five".