43149428 has 12 divisors (see below), whose sum is σ = 86298912. Its totient is φ = 18492600.

The previous prime is 43149413. The next prime is 43149439. The reversal of 43149428 is 82494134.

43149428 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770498 + ... + 770553.

It is an arithmetic number, because the mean of its divisors is an integer number (7191576).

Almost surely, 2^43149428 is an apocalyptic number.

It is an amenable number.

43149428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43149428 is a wasteful number, since it uses less digits than its factorization.

43149428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541062 (or 1541060 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 43149428 is about 6568.8224211041. The cubic root of 43149428 is about 350.7451552844.

The spelling of 43149428 in words is "forty-three million, one hundred forty-nine thousand, four hundred twenty-eight".