2239905 has 16 divisors (see below), whose sum is σ = 3700224. Its totient is φ = 1155840.

The previous prime is 2239889. The next prime is 2239933. The reversal of 2239905 is 5099322.

It is not a de Polignac number, because 2239905 - 2⁴ = 2239889 is a prime.

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, 1944 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (231264).

2^2239905 is an apocalyptic number.

It is an amenable number.

2239905 is a deficient number, since it is larger than the sum of its proper divisors (1460319).

2239905 is a wasteful number, since it uses less digits than its factorization.

2239905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 2239905 is about 1496.6312171006. The cubic root of 2239905 is about 130.8408026713.

The spelling of 2239905 in words is "two million, two hundred thirty-nine thousand, nine hundred five".