338907217 has 8 divisors (see below), whose sum is σ = 373378752. Its totient is φ = 305046000.

The previous prime is 338907197. The next prime is 338907229. The reversal of 338907217 is 712709833.

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 338907217 - 2¹⁵ = 338874449 is a prime.

It is a super-2 number, since 2×338907217² = 229716203469370178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338907217.

It is not an unprimeable number, because it can be changed into a prime (338908217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151413 + ... + 153634.

It is an arithmetic number, because the mean of its divisors is an integer number (46672344).

Almost surely, 2^338907217 is an apocalyptic number.

It is an amenable number.

338907217 is a deficient number, since it is larger than the sum of its proper divisors (34471535).

338907217 is a wasteful number, since it uses less digits than its factorization.

338907217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305159.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 338907217 is about 18409.4328266788. The cubic root of 338907217 is about 697.2046458728.

The spelling of 338907217 in words is "three hundred thirty-eight million, nine hundred seven thousand, two hundred seventeen".