2281994 has 32 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 936000.

The previous prime is 2281987. The next prime is 2282017. The reversal of 2281994 is 4991822.

2281994 = T₁₁₆ + T₁₁₇ + ... + T₂₄₇.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22544 + ... + 22644.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2^2281994 is an apocalyptic number.

2281994 is a deficient number, since it is larger than the sum of its proper divisors (1830646).

2281994 is a wasteful number, since it uses less digits than its factorization.

2281994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

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

The square root of 2281994 is about 1510.6270221335. The cubic root of 2281994 is about 131.6552451415.

It can be divided in two parts, 228 and 1994, that added together give a palindrome (2222).

The spelling of 2281994 in words is "two million, two hundred eighty-one thousand, nine hundred ninety-four".