47144980 has 12 divisors (see below), whose sum is σ = 99004500. Its totient is φ = 18857984.

The previous prime is 47144969. The next prime is 47144983. The reversal of 47144980 is 8944174.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 10227204 = 6076^2 + 3198^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47144983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1178605 + ... + 1178644.

It is an arithmetic number, because the mean of its divisors is an integer number (8250375).

Almost surely, 2^47144980 is an apocalyptic number.

It is an amenable number.

47144980 is an abundant number, since it is smaller than the sum of its proper divisors (51859520).

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

47144980 is a wasteful number, since it uses less digits than its factorization.

47144980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357258 (or 2357256 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 47144980 is about 6866.2202120235. The cubic root of 47144980 is about 361.2532963465.

It can be divided in two parts, 471 and 44980, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 47144980 in words is "forty-seven million, one hundred forty-four thousand, nine hundred eighty".