8390242 has 8 divisors (see below), whose sum is σ = 14383296. Its totient is φ = 3595812.

The previous prime is 8390233. The next prime is 8390257. The reversal of 8390242 is 2420938.

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

It is a d-powerful number, because it can be written as 8 + 3⁴ + 9 + 0 + 2⁹ + 4⁵ + 2²³ .

It is a self number, because there is not a number n which added to its sum of digits gives 8390242.

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, 299638 + ... + 299665.

It is an arithmetic number, because the mean of its divisors is an integer number (1797912).

Almost surely, 2^8390242 is an apocalyptic number.

8390242 is a deficient number, since it is larger than the sum of its proper divisors (5993054).

8390242 is a wasteful number, since it uses less digits than its factorization.

8390242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599312.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8390242 is about 2896.5914451299. The cubic root of 8390242 is about 203.2005266122.

The spelling of 8390242 in words is "eight million, three hundred ninety thousand, two hundred forty-two".