338284947 has 64 divisors (see below), whose sum is σ = 611057664. Its totient is φ = 160755840.

The previous prime is 338284939. The next prime is 338284951. The reversal of 338284947 is 749482833.

It is not a de Polignac number, because 338284947 - 2³ = 338284939 is a prime.

It is a super-2 number, since 2×338284947² = 228873410733585618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338284896 and 338284905.

It is not an unprimeable number, because it can be changed into a prime (338284907) 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 63 ways as a sum of consecutive naturals, for example, 380938 + ... + 381824.

It is an arithmetic number, because the mean of its divisors is an integer number (9547776).

Almost surely, 2^338284947 is an apocalyptic number.

338284947 is a deficient number, since it is larger than the sum of its proper divisors (272772717).

338284947 is a wasteful number, since it uses less digits than its factorization.

338284947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its digits is 1161216, while the sum is 48.

The square root of 338284947 is about 18392.5242150174. The cubic root of 338284947 is about 696.7776702722. Note that the first 3 decimals are identical.

The spelling of 338284947 in words is "three hundred thirty-eight million, two hundred eighty-four thousand, nine hundred forty-seven".