2991230 has 32 divisors (see below), whose sum is σ = 5971968. Its totient is φ = 1069600.

The previous prime is 2991229. The next prime is 2991239. The reversal of 2991230 is 321992.

It is a self number, because there is not a number n which added to its sum of digits gives 2991230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7619 + ... + 8001.

It is an arithmetic number, because the mean of its divisors is an integer number (186624).

2^2991230 is an apocalyptic number.

2991230 is a deficient number, since it is larger than the sum of its proper divisors (2980738).

2991230 is a wasteful number, since it uses less digits than its factorization.

2991230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2991230 is about 1729.5172736923. The cubic root of 2991230 is about 144.0842806521.

The spelling of 2991230 in words is "two million, nine hundred ninety-one thousand, two hundred thirty".