47143320 has 64 divisors (see below), whose sum is σ = 161637120. Its totient is φ = 10775424.

The previous prime is 47143319. The next prime is 47143321. The reversal of 47143320 is 2334174.

It is an interprime number because it is at equal distance from previous prime (47143319) and next prime (47143321).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47143321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27222 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (2525580).

Almost surely, 2^47143320 is an apocalyptic number.

47143320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47143320 is an abundant number, since it is smaller than the sum of its proper divisors (114493800).

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

47143320 is a wasteful number, since it uses less digits than its factorization.

47143320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56144 (or 56140 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 47143320 is about 6866.0993293136. The cubic root of 47143320 is about 361.2490563227.

Adding to 47143320 its reverse (2334174), we get a palindrome (49477494).

The spelling of 47143320 in words is "forty-seven million, one hundred forty-three thousand, three hundred twenty".