2239816 has 8 divisors (see below), whose sum is σ = 4199670. Its totient is φ = 1119904.

The previous prime is 2239807. The next prime is 2239847. The reversal of 2239816 is 6189322.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 417316 = 1350^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139981 + ... + 139996.

2^2239816 is an apocalyptic number.

It is an amenable number.

2239816 is a deficient number, since it is larger than the sum of its proper divisors (1959854).

2239816 is a wasteful number, since it uses less digits than its factorization.

2239816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279983 (or 279979 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 2239816 is about 1496.6014833616. The cubic root of 2239816 is about 130.8390697130.

The spelling of 2239816 in words is "two million, two hundred thirty-nine thousand, eight hundred sixteen".