2830720 has 32 divisors (see below), whose sum is σ = 6768720. Its totient is φ = 1132032.

The previous prime is 2830657. The next prime is 2830741. The reversal of 2830720 is 270382.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 2830691 and 2830700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572 + ... + 2851.

2^2830720 is an apocalyptic number.

2830720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2830720 is an abundant number, since it is smaller than the sum of its proper divisors (3938000).

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

2830720 is an equidigital number, since it uses as much as digits as its factorization.

2830720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2830720 is about 1682.4743683040. The cubic root of 2830720 is about 141.4595605033.

The spelling of 2830720 in words is "two million, eight hundred thirty thousand, seven hundred twenty".