2872830 has 64 divisors (see below), whose sum is σ = 7527168. Its totient is φ = 698880.

The previous prime is 2872823. The next prime is 2872853. The reversal of 2872830 is 382782.

2872830 = 756² + 757² + ... + 760².

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21865 + ... + 21995.

It is an arithmetic number, because the mean of its divisors is an integer number (117612).

2^2872830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2872830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3763584).

2872830 is an abundant number, since it is smaller than the sum of its proper divisors (4654338).

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

2872830 is a wasteful number, since it uses less digits than its factorization.

2872830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2872830 is about 1694.9424769000. The cubic root of 2872830 is about 142.1575649657.

The spelling of 2872830 in words is "two million, eight hundred seventy-two thousand, eight hundred thirty".