2128994 has 16 divisors (see below), whose sum is σ = 3670656. Its totient is φ = 907200.

The previous prime is 2128993. The next prime is 2129003. The reversal of 2128994 is 4998212.

It is a super-3 number, since 3×2128994³ = 28949733305075795352, which contains 333 as substring.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3059 + ... + 3689.

It is an arithmetic number, because the mean of its divisors is an integer number (229416).

2^2128994 is an apocalyptic number.

2128994 is a deficient number, since it is larger than the sum of its proper divisors (1541662).

2128994 is a wasteful number, since it uses less digits than its factorization.

2128994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 10368, while the sum is 35.

The square root of 2128994 is about 1459.1072613074. The cubic root of 2128994 is about 128.6445757785.

The spelling of 2128994 in words is "two million, one hundred twenty-eight thousand, nine hundred ninety-four".