2788930 has 32 divisors (see below), whose sum is σ = 5313600. Its totient is φ = 1052352.

The previous prime is 2788927. The next prime is 2788939. The reversal of 2788930 is 398872.

2788930 = 296² + 297² + ... + 324².

It is a self number, because there is not a number n which added to its sum of digits gives 2788930.

It is not an unprimeable number, because it can be changed into a prime (2788939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17029 + ... + 17191.

It is an arithmetic number, because the mean of its divisors is an integer number (166050).

2^2788930 is an apocalyptic number.

2788930 is a deficient number, since it is larger than the sum of its proper divisors (2524670).

2788930 is a wasteful number, since it uses less digits than its factorization.

2788930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2788930 is about 1670.0089820118. The cubic root of 2788930 is about 140.7599826552.

The spelling of 2788930 in words is "two million, seven hundred eighty-eight thousand, nine hundred thirty".