43472133 has 40 divisors (see below), whose sum is σ = 69928320. Its totient is φ = 26827200.

The previous prime is 43472129. The next prime is 43472141. The reversal of 43472133 is 33127434.

It is not a de Polignac number, because 43472133 - 2² = 43472129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 43472097 and 43472106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43472113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72033 + ... + 72633.

It is an arithmetic number, because the mean of its divisors is an integer number (1748208).

Almost surely, 2^43472133 is an apocalyptic number.

43472133 is the 3807-th octagonal number.

It is an amenable number.

43472133 is a deficient number, since it is larger than the sum of its proper divisors (26456187).

43472133 is a wasteful number, since it uses less digits than its factorization.

43472133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 670 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 43472133 is about 6593.3400488675. The cubic root of 43472133 is about 351.6173662636.

Adding to 43472133 its reverse (33127434), we get a palindrome (76599567).

The spelling of 43472133 in words is "forty-three million, four hundred seventy-two thousand, one hundred thirty-three".