47018430 has 96 divisors (see below), whose sum is σ = 131414400. Its totient is φ = 11621376.

The previous prime is 47018423. The next prime is 47018443. The reversal of 47018430 is 3481074.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47018394 and 47018403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120676 + ... + 121064.

It is an arithmetic number, because the mean of its divisors is an integer number (1368900).

Almost surely, 2^47018430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47018430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65707200).

47018430 is an abundant number, since it is smaller than the sum of its proper divisors (84395970).

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

47018430 is a wasteful number, since it uses less digits than its factorization.

47018430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 47018430 is about 6856.9986145543. The cubic root of 47018430 is about 360.9297725337.

It can be divided in two parts, 4701 and 8430, that added together give a palindrome (13131).

The spelling of 47018430 in words is "forty-seven million, eighteen thousand, four hundred thirty".