47445144 has 32 divisors (see below), whose sum is σ = 119070000. Its totient is φ = 15754112.

The previous prime is 47445143. The next prime is 47445149. The reversal of 47445144 is 44154474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47445143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2782 + ... + 10130.

Almost surely, 2^47445144 is an apocalyptic number.

It is an amenable number.

47445144 is an abundant number, since it is smaller than the sum of its proper divisors (71624856).

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

47445144 is a wasteful number, since it uses less digits than its factorization.

47445144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7627 (or 7623 counting only the distinct ones).

The product of its digits is 35840, while the sum is 33.

The square root of 47445144 is about 6888.0435538693. The cubic root of 47445144 is about 362.0183542274.

The spelling of 47445144 in words is "forty-seven million, four hundred forty-five thousand, one hundred forty-four".