4099994 has 8 divisors (see below), whose sum is σ = 6211188. Its totient is φ = 2029600.

The previous prime is 4099981. The next prime is 4100011. The reversal of 4099994 is 4999904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3783025 + 316969 = 1945^2 + 563^2 .

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

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, 9947 + ... + 10350.

Almost surely, 2^4099994 is an apocalyptic number.

4099994 is a deficient number, since it is larger than the sum of its proper divisors (2111194).

4099994 is a wasteful number, since it uses less digits than its factorization.

4099994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 4099994 is about 2024.8441915367. The cubic root of 4099994 is about 160.0519883141.

The spelling of 4099994 in words is "four million, ninety-nine thousand, nine hundred ninety-four".