47043420 has 72 divisors (see below), whose sum is σ = 139977264. Its totient is φ = 11802624.

The previous prime is 47043407. The next prime is 47043427. The reversal of 47043420 is 2434074.

It is a super-3 number, since 3×47043420³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47043427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15984 + ... + 18696.

Almost surely, 2^47043420 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 47043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69988632).

47043420 is an abundant number, since it is smaller than the sum of its proper divisors (92933844).

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

47043420 is a wasteful number, since it uses less digits than its factorization.

47043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 47043420 is about 6858.8205983245. The cubic root of 47043420 is about 360.9937051769.

Adding to 47043420 its reverse (2434074), we get a palindrome (49477494).

The spelling of 47043420 in words is "forty-seven million, forty-three thousand, four hundred twenty".