47144388 has 24 divisors (see below), whose sum is σ = 114787008. Its totient is φ = 15031456.

The previous prime is 47144359. The next prime is 47144389. The reversal of 47144388 is 88344174.

It is not an unprimeable number, because it can be changed into a prime (47144389) 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, 85131 + ... + 85682.

It is an arithmetic number, because the mean of its divisors is an integer number (4782792).

Almost surely, 2^47144388 is an apocalyptic number.

It is an amenable number.

47144388 is an abundant number, since it is smaller than the sum of its proper divisors (67642620).

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

47144388 is a wasteful number, since it uses less digits than its factorization.

47144388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170843 (or 170841 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 47144388 is about 6866.1771022892. The cubic root of 47144388 is about 361.2517842530.

The spelling of 47144388 in words is "forty-seven million, one hundred forty-four thousand, three hundred eighty-eight".