338906247 has 8 divisors (see below), whose sum is σ = 452258544. Its totient is φ = 225745728.

The previous prime is 338906213. The next prime is 338906251. The reversal of 338906247 is 742609833.

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

It is not a de Polignac number, because 338906247 - 2⁸ = 338905991 is a prime.

It is a super-2 number, since 2×338906247² = 229714888511250018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338906199 and 338906208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338906147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43768 + ... + 50925.

It is an arithmetic number, because the mean of its divisors is an integer number (56532318).

Almost surely, 2^338906247 is an apocalyptic number.

338906247 is a deficient number, since it is larger than the sum of its proper divisors (113352297).

338906247 is a wasteful number, since it uses less digits than its factorization.

338906247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95889.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 338906247 is about 18409.4064814703. The cubic root of 338906247 is about 697.2039807064.

The spelling of 338906247 in words is "three hundred thirty-eight million, nine hundred six thousand, two hundred forty-seven".