4090245 has 8 divisors (see below), whose sum is σ = 6544416. Its totient is φ = 2181456.

The previous prime is 4090243. The next prime is 4090253. The reversal of 4090245 is 5420904.

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

It is not a de Polignac number, because 4090245 - 2¹ = 4090243 is a prime.

4090245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136327 + ... + 136356.

It is an arithmetic number, because the mean of its divisors is an integer number (818052).

Almost surely, 2^4090245 is an apocalyptic number.

It is an amenable number.

4090245 is a deficient number, since it is larger than the sum of its proper divisors (2454171).

4090245 is a wasteful number, since it uses less digits than its factorization.

4090245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272691.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 4090245 is about 2022.4354130602. The cubic root of 4090245 is about 159.9250299815.

The spelling of 4090245 in words is "four million, ninety thousand, two hundred forty-five".