47118318 has 32 divisors (see below), whose sum is σ = 102507552. Its totient is φ = 14352000.

The previous prime is 47118311. The next prime is 47118319. The reversal of 47118318 is 81381174.

It is a super-2 number, since 2×47118318² = 4440271782298248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47118311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4888 + ... + 10868.

It is an arithmetic number, because the mean of its divisors is an integer number (3203361).

Almost surely, 2^47118318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47118318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51253776).

47118318 is an abundant number, since it is smaller than the sum of its proper divisors (55389234).

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

47118318 is a wasteful number, since it uses less digits than its factorization.

47118318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100.

The product of its digits is 5376, while the sum is 33.

The square root of 47118318 is about 6864.2784034449. The cubic root of 47118318 is about 361.1851833919.

The spelling of 47118318 in words is "forty-seven million, one hundred eighteen thousand, three hundred eighteen".