2870812 has 36 divisors (see below), whose sum is σ = 5943504. Its totient is φ = 1209600.

The previous prime is 2870801. The next prime is 2870821. The reversal of 2870812 is 2180782.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18937 + ... + 19087.

2^2870812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2870812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971752).

2870812 is an abundant number, since it is smaller than the sum of its proper divisors (3072692).

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

2870812 is a wasteful number, since it uses less digits than its factorization.

2870812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2870812 is about 1694.3470718834. The cubic root of 2870812 is about 142.1242712956.

The spelling of 2870812 in words is "two million, eight hundred seventy thousand, eight hundred twelve".