2399706 has 20 divisors (see below), whose sum is σ = 5377482. Its totient is φ = 799848.

The previous prime is 2399699. The next prime is 2399711. The reversal of 2399706 is 6079932.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 194481 = 1485^2 + 441^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7245 + ... + 7568.

2^2399706 is an apocalyptic number.

2399706 is an abundant number, since it is smaller than the sum of its proper divisors (2977776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2399706 is a wasteful number, since it uses less digits than its factorization.

2399706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14827 (or 14818 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 2399706 is about 1549.0984474849. The cubic root of 2399706 is about 133.8811227574.

The spelling of 2399706 in words is "two million, three hundred ninety-nine thousand, seven hundred six".