47011320 has 256 divisors, whose sum is σ = 172800000. Its totient is φ = 11321856.

The previous prime is 47011309. The next prime is 47011331. The reversal of 47011320 is 2311074.

It is an interprime number because it is at equal distance from previous prime (47011309) and next prime (47011331).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 47011293 and 47011302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 595041 + ... + 595119.

It is an arithmetic number, because the mean of its divisors is an integer number (675000).

Almost surely, 2^47011320 is an apocalyptic number.

47011320 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 47011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86400000).

47011320 is an abundant number, since it is smaller than the sum of its proper divisors (125788680).

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

47011320 is a wasteful number, since it uses less digits than its factorization.

47011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 47011320 is about 6856.4801465475. The cubic root of 47011320 is about 360.9115786748.

Adding to 47011320 its reverse (2311074), we get a palindrome (49322394).

The spelling of 47011320 in words is "forty-seven million, eleven thousand, three hundred twenty".