2815000 has 40 divisors (see below), whose sum is σ = 6607260. Its totient is φ = 1124000.

The previous prime is 2814991. The next prime is 2815003. The reversal of 2815000 is 5182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4719 + ... + 5281.

2^2815000 is an apocalyptic number.

2815000 is a gapful number since it is divisible by the number (20) 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 2815000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3303630).

2815000 is an abundant number, since it is smaller than the sum of its proper divisors (3792260).

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

2815000 is an equidigital number, since it uses as much as digits as its factorization.

2815000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2815000 is about 1677.7961735563. The cubic root of 2815000 is about 141.1972157695.

The spelling of 2815000 in words is "two million, eight hundred fifteen thousand".