3047220 has 168 divisors, whose sum is σ = 11017440. Its totient is φ = 699840.

The previous prime is 3047203. The next prime is 3047221. The reversal of 3047220 is 227403.

3047220 = T₃₀₅ + T₃₀₆ + ... + T₃₅₉.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3047193 and 3047202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3047221) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 160371 + ... + 160389.

It is an arithmetic number, because the mean of its divisors is an integer number (65580).

Almost surely, 2^3047220 is an apocalyptic number.

3047220 is a gapful number since it is divisible by the number (30) 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 3047220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5508720).

3047220 is an abundant number, since it is smaller than the sum of its proper divisors (7970220).

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

3047220 is a wasteful number, since it uses less digits than its factorization.

3047220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3047220 is about 1745.6288265264. The cubic root of 3047220 is about 144.9777215078.

The spelling of 3047220 in words is "three million, forty-seven thousand, two hundred twenty".