2347220 has 12 divisors (see below), whose sum is σ = 4929204. Its totient is φ = 938880.

The previous prime is 2347217. The next prime is 2347229. The reversal of 2347220 is 227432.

2347220 = 76² + 77² + ... + 195².

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 1522756 = 908^2 + 1234^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 117361 = 2347220 / (2 + 3 + 4 + 7 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2347192 and 2347201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2347229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58661 + ... + 58700.

It is an arithmetic number, because the mean of its divisors is an integer number (410767).

2^2347220 is an apocalyptic number.

2347220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2347220 is an abundant number, since it is smaller than the sum of its proper divisors (2581984).

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

2347220 is a wasteful number, since it uses less digits than its factorization.

2347220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117370 (or 117368 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2347220 is about 1532.0639673330. The cubic root of 2347220 is about 132.8978430491.

The spelling of 2347220 in words is "two million, three hundred forty-seven thousand, two hundred twenty".