42847320 has 64 divisors (see below), whose sum is σ = 130986720. Its totient is φ = 11208704.

The previous prime is 42847319. The next prime is 42847379. The reversal of 42847320 is 2374824.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2992 + ... + 9728.

Almost surely, 2^42847320 is an apocalyptic number.

42847320 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 42847320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65493360).

42847320 is an abundant number, since it is smaller than the sum of its proper divisors (88139400).

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

42847320 is a wasteful number, since it uses less digits than its factorization.

42847320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804 (or 6800 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42847320 is about 6545.7864309799. The cubic root of 42847320 is about 349.9246640575.

The spelling of 42847320 in words is "forty-two million, eight hundred forty-seven thousand, three hundred twenty".