47430144 has 160 divisors (see below), whose sum is σ = 145347840. Its totient is φ = 15261696.

The previous prime is 47430113. The next prime is 47430169. The reversal of 47430144 is 44103474.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 649692 + ... + 649764.

It is an arithmetic number, because the mean of its divisors is an integer number (908424).

Almost surely, 2^47430144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47430144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72673920).

47430144 is an abundant number, since it is smaller than the sum of its proper divisors (97917696).

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

47430144 is an equidigital number, since it uses as much as digits as its factorization.

47430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 47430144 is about 6886.9546245057. The cubic root of 47430144 is about 361.9801989515.

It can be divided in two parts, 47430 and 144, that added together give a palindrome (47574).

The spelling of 47430144 in words is "forty-seven million, four hundred thirty thousand, one hundred forty-four".