1238305 has 8 divisors (see below), whose sum is σ = 1495872. Its totient is φ = 984048.

The previous prime is 1238291. The next prime is 1238317. The reversal of 1238305 is 5038321.

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

It is a cyclic number.

It is not a de Polignac number, because 1238305 - 2⁵ = 1238273 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94 + ... + 1576.

It is an arithmetic number, because the mean of its divisors is an integer number (186984).

2^1238305 is an apocalyptic number.

It is an amenable number.

1238305 is a deficient number, since it is larger than the sum of its proper divisors (257567).

1238305 is a wasteful number, since it uses less digits than its factorization.

1238305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1238305 is about 1112.7915348348. The cubic root of 1238305 is about 107.3847331286.

The spelling of 1238305 in words is "one million, two hundred thirty-eight thousand, three hundred five".