2861229 has 32 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 1512000.

The previous prime is 2861213. The next prime is 2861231. The reversal of 2861229 is 9221682.

It is not a de Polignac number, because 2861229 - 2⁴ = 2861213 is a prime.

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 Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2861196 and 2861205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28279 + ... + 28379.

It is an arithmetic number, because the mean of its divisors is an integer number (146880).

2^2861229 is an apocalyptic number.

It is an amenable number.

2861229 is a deficient number, since it is larger than the sum of its proper divisors (1838931).

2861229 is a wasteful number, since it uses less digits than its factorization.

2861229 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 digits is 3456, while the sum is 30.

The square root of 2861229 is about 1691.5167749685. The cubic root of 2861229 is about 141.9659542792.

The spelling of 2861229 in words is "two million, eight hundred sixty-one thousand, two hundred twenty-nine".