43506472 has 8 divisors (see below), whose sum is σ = 81574650. Its totient is φ = 21753232.

The previous prime is 43506461. The next prime is 43506473. The reversal of 43506472 is 27460534.

It can be written as a sum of positive squares in only one way, i.e., 23561316 + 19945156 = 4854^2 + 4466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (43506473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719147 + ... + 2719162.

Almost surely, 2^43506472 is an apocalyptic number.

It is an amenable number.

43506472 is a deficient number, since it is larger than the sum of its proper divisors (38068178).

43506472 is a wasteful number, since it uses less digits than its factorization.

43506472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438315 (or 5438311 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 43506472 is about 6595.9436019420. The cubic root of 43506472 is about 351.7099237261.

The spelling of 43506472 in words is "forty-three million, five hundred six thousand, four hundred seventy-two".