2870020 has 12 divisors (see below), whose sum is σ = 6027084. Its totient is φ = 1148000.

The previous prime is 2870017. The next prime is 2870027. The reversal of 2870020 is 200782.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 2316484 = 744^2 + 1522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2870020.

It is not an unprimeable number, because it can be changed into a prime (2870027) 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, 71731 + ... + 71770.

It is an arithmetic number, because the mean of its divisors is an integer number (502257).

2^2870020 is an apocalyptic number.

2870020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2870020 is an abundant number, since it is smaller than the sum of its proper divisors (3157064).

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

2870020 is a wasteful number, since it uses less digits than its factorization.

2870020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143510 (or 143508 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2870020 is about 1694.1133374128. The cubic root of 2870020 is about 142.1112003391. Note that the first 3 decimals are identical.

The spelling of 2870020 in words is "two million, eight hundred seventy thousand, twenty".