47171040 has 192 divisors, whose sum is σ = 172730880. Its totient is φ = 10598400.

The previous prime is 47171021. The next prime is 47171071. The reversal of 47171040 is 4017174.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47171040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339291 + ... + 339429.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 2^47171040 is an apocalyptic number.

47171040 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 47171040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86365440).

47171040 is an abundant number, since it is smaller than the sum of its proper divisors (125559840).

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

47171040 is a wasteful number, since it uses less digits than its factorization.

47171040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 47171040 is about 6868.1176460512. The cubic root of 47171040 is about 361.3198465696.

The spelling of 47171040 in words is "forty-seven million, one hundred seventy-one thousand, forty".