47789280 has 288 divisors, whose sum is σ = 203793408. Its totient is φ = 9907200.

The previous prime is 47789279. The next prime is 47789317. The reversal of 47789280 is 8298774.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110665 + ... + 111095.

It is an arithmetic number, because the mean of its divisors is an integer number (707616).

Almost surely, 2^47789280 is an apocalyptic number.

47789280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47789280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101896704).

47789280 is an abundant number, since it is smaller than the sum of its proper divisors (156004128).

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

47789280 is a wasteful number, since it uses less digits than its factorization.

47789280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 47789280 is about 6912.9790973212. The cubic root of 47789280 is about 362.8915278198.

The spelling of 47789280 in words is "forty-seven million, seven hundred eighty-nine thousand, two hundred eighty".