2281906 has 8 divisors (see below), whose sum is σ = 3734064. Its totient is φ = 1037220.

The previous prime is 2281891. The next prime is 2281913. The reversal of 2281906 is 6091822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51840 + ... + 51883.

It is an arithmetic number, because the mean of its divisors is an integer number (466758).

2^2281906 is an apocalyptic number.

2281906 is a deficient number, since it is larger than the sum of its proper divisors (1452158).

2281906 is a wasteful number, since it uses less digits than its factorization.

2281906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103736.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2281906 is about 1510.5978948747. The cubic root of 2281906 is about 131.6535527896.

The spelling of 2281906 in words is "two million, two hundred eighty-one thousand, nine hundred six".