2825860 has 24 divisors (see below), whose sum is σ = 5969880. Its totient is φ = 1123584.

The previous prime is 2825857. The next prime is 2825861. The reversal of 2825860 is 685282.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 2617924 = 456^2 + 1618^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2825861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4272 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (248745).

2^2825860 is an apocalyptic number.

2825860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2825860 is an abundant number, since it is smaller than the sum of its proper divisors (3144020).

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

2825860 is a wasteful number, since it uses less digits than its factorization.

2825860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2825860 is about 1681.0294465000. The cubic root of 2825860 is about 141.3785578741.

The spelling of 2825860 in words is "two million, eight hundred twenty-five thousand, eight hundred sixty".