43491452 has 12 divisors (see below), whose sum is σ = 76965840. Its totient is φ = 21501216.

The previous prime is 43491443. The next prime is 43491479. The reversal of 43491452 is 25419434.

43491452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60728 + ... + 61439.

It is an arithmetic number, because the mean of its divisors is an integer number (6413820).

Almost surely, 2^43491452 is an apocalyptic number.

It is an amenable number.

43491452 is a deficient number, since it is larger than the sum of its proper divisors (33474388).

43491452 is a wasteful number, since it uses less digits than its factorization.

43491452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122260 (or 122258 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 43491452 is about 6594.8049250907. The cubic root of 43491452 is about 351.6694447594.

The spelling of 43491452 in words is "forty-three million, four hundred ninety-one thousand, four hundred fifty-two".