3078220 has 12 divisors (see below), whose sum is σ = 6464304. Its totient is φ = 1231280.

The previous prime is 3078217. The next prime is 3078223. The reversal of 3078220 is 228703.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3078217) and next prime (3078223).

It is a junction number, because it is equal to n+sod(n) for n = 3078191 and 3078200.

It is not an unprimeable number, because it can be changed into a prime (3078223) 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, 76936 + ... + 76975.

It is an arithmetic number, because the mean of its divisors is an integer number (538692).

Almost surely, 2^3078220 is an apocalyptic number.

It is an amenable number.

3078220 is an abundant number, since it is smaller than the sum of its proper divisors (3386084).

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

3078220 is a wasteful number, since it uses less digits than its factorization.

3078220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153920 (or 153918 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3078220 is about 1754.4856796224. The cubic root of 3078220 is about 145.4676931771.

The spelling of 3078220 in words is "three million, seventy-eight thousand, two hundred twenty".