47444028 has 12 divisors (see below), whose sum is σ = 110702760. Its totient is φ = 15814672.

The previous prime is 47444021. The next prime is 47444041. The reversal of 47444028 is 82044474.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 47444028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47444021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976823 + ... + 1976846.

It is an arithmetic number, because the mean of its divisors is an integer number (9225230).

Almost surely, 2^47444028 is an apocalyptic number.

It is an amenable number.

47444028 is an abundant number, since it is smaller than the sum of its proper divisors (63258732).

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

47444028 is a wasteful number, since it uses less digits than its factorization.

47444028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953676 (or 3953674 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 47444028 is about 6887.9625434522. The cubic root of 47444028 is about 362.0155157518.

The spelling of 47444028 in words is "forty-seven million, four hundred forty-four thousand, twenty-eight".