47418816 has 56 divisors (see below), whose sum is σ = 125967744. Its totient is φ = 15742720.

The previous prime is 47418757. The next prime is 47418853. The reversal of 47418816 is 61881474.

It is a super-2 number, since 2×47418816² = 4497088221683712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94021 + ... + 94523.

It is an arithmetic number, because the mean of its divisors is an integer number (2249424).

Almost surely, 2^47418816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47418816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62983872).

47418816 is an abundant number, since it is smaller than the sum of its proper divisors (78548928).

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

47418816 is a wasteful number, since it uses less digits than its factorization.

47418816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 999 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 47418816 is about 6886.1321509248. The cubic root of 47418816 is about 361.9513787552.

The spelling of 47418816 in words is "forty-seven million, four hundred eighteen thousand, eight hundred sixteen".