47269818 has 64 divisors (see below), whose sum is σ = 108397440. Its totient is φ = 15454800.

The previous prime is 47269813. The next prime is 47269829. The reversal of 47269818 is 81896274.

It is not an unprimeable number, because it can be changed into a prime (47269811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441721 + ... + 441827.

It is an arithmetic number, because the mean of its divisors is an integer number (1693710).

Almost surely, 2^47269818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47269818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54198720).

47269818 is an abundant number, since it is smaller than the sum of its proper divisors (61127622).

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

47269818 is a wasteful number, since it uses less digits than its factorization.

47269818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 213 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 47269818 is about 6875.3049386918. The cubic root of 47269818 is about 361.5718766877.

The spelling of 47269818 in words is "forty-seven million, two hundred sixty-nine thousand, eight hundred eighteen".