4090906 has 8 divisors (see below), whose sum is σ = 6149664. Its totient is φ = 2041020.

The previous prime is 4090903. The next prime is 4090907. The reversal of 4090906 is 6090904.

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

It is not an unprimeable number, because it can be changed into a prime (4090901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910 + ... + 3001.

It is an arithmetic number, because the mean of its divisors is an integer number (768708).

Almost surely, 2^4090906 is an apocalyptic number.

4090906 is a deficient number, since it is larger than the sum of its proper divisors (2058758).

4090906 is a wasteful number, since it uses less digits than its factorization.

4090906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 4090906 is about 2022.5988232964. The cubic root of 4090906 is about 159.9336443596.

The spelling of 4090906 in words is "four million, ninety thousand, nine hundred six".