43995428 has 6 divisors (see below), whose sum is σ = 76992006. Its totient is φ = 21997712.

The previous prime is 43995401. The next prime is 43995437. The reversal of 43995428 is 82459934.

It can be written as a sum of positive squares in only one way, i.e., 31449664 + 12545764 = 5608^2 + 3542^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499425 + ... + 5499432.

It is an arithmetic number, because the mean of its divisors is an integer number (12832001).

Almost surely, 2^43995428 is an apocalyptic number.

It is an amenable number.

43995428 is a deficient number, since it is larger than the sum of its proper divisors (32996578).

43995428 is a wasteful number, since it uses less digits than its factorization.

43995428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998861 (or 10998859 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 43995428 is about 6632.9049442910. The cubic root of 43995428 is about 353.0226052662.

The spelling of 43995428 in words is "forty-three million, nine hundred ninety-five thousand, four hundred twenty-eight".