47243320 has 64 divisors (see below), whose sum is σ = 111132000. Its totient is φ = 18052608.

The previous prime is 47243263. The next prime is 47243321. The reversal of 47243320 is 2334274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47243321) 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, 161094 + ... + 161386.

Almost surely, 2^47243320 is an apocalyptic number.

47243320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47243320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55566000).

47243320 is an abundant number, since it is smaller than the sum of its proper divisors (63888680).

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

47243320 is a wasteful number, since it uses less digits than its factorization.

47243320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 47243320 is about 6873.3776267567. The cubic root of 47243320 is about 361.5043020505.

Adding to 47243320 its reverse (2334274), we get a palindrome (49577594).

The spelling of 47243320 in words is "forty-seven million, two hundred forty-three thousand, three hundred twenty".