2447320 has 64 divisors (see below), whose sum is σ = 6026400. Its totient is φ = 890880.

The previous prime is 2447293. The next prime is 2447321. The reversal of 2447320 is 237442.

It is a junction number, because it is equal to n+sod(n) for n = 2447291 and 2447300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447321) 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, 40090 + ... + 40150.

2^2447320 is an apocalyptic number.

2447320 is a gapful number since it is divisible by the number (20) 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 2447320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3013200).

2447320 is an abundant number, since it is smaller than the sum of its proper divisors (3579080).

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

2447320 is a wasteful number, since it uses less digits than its factorization.

2447320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 2447320 is about 1564.3912554090. The cubic root of 2447320 is about 134.7608018529.

The spelling of 2447320 in words is "two million, four hundred forty-seven thousand, three hundred twenty".