47144500 has 48 divisors (see below), whose sum is σ = 110899152. Its totient is φ = 17404800.

The previous prime is 47144479. The next prime is 47144509. The reversal of 47144500 is 544174.

It can be written as a sum of positive squares in 8 ways, for example, as 18714276 + 28430224 = 4326^2 + 5332^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47144509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2874 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (2310399).

Almost surely, 2^47144500 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 47144500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55449576).

47144500 is an abundant number, since it is smaller than the sum of its proper divisors (63754652).

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

47144500 is a wasteful number, since it uses less digits than its factorization.

47144500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7273 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 47144500 is about 6866.1852582056. The cubic root of 47144500 is about 361.2520703257.

Adding to 47144500 its reverse (544174), we get a palindrome (47688674).

The spelling of 47144500 in words is "forty-seven million, one hundred forty-four thousand, five hundred".