2870220 has 24 divisors (see below), whose sum is σ = 8036784. Its totient is φ = 765376.

The previous prime is 2870183. The next prime is 2870227. The reversal of 2870220 is 220782.

It is not an unprimeable number, because it can be changed into a prime (2870227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23859 + ... + 23978.

It is an arithmetic number, because the mean of its divisors is an integer number (334866).

2^2870220 is an apocalyptic number.

2870220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2870220 is an abundant number, since it is smaller than the sum of its proper divisors (5166564).

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

2870220 is a wasteful number, since it uses less digits than its factorization.

2870220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47849 (or 47847 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2870220 is about 1694.1723643124. The cubic root of 2870220 is about 142.1145013126.

The spelling of 2870220 in words is "two million, eight hundred seventy thousand, two hundred twenty".