338601809 has 36 divisors (see below), whose sum is σ = 440605440. Its totient is φ = 259066080.

The previous prime is 338601803. The next prime is 338601833. The reversal of 338601809 is 908106833.

It is a de Polignac number, because none of the positive numbers 2^k-338601809 is a prime.

It is a super-2 number, since 2×338601809² = 229302370116144962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338601803) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 256052 + ... + 257370.

It is an arithmetic number, because the mean of its divisors is an integer number (12239040).

Almost surely, 2^338601809 is an apocalyptic number.

It is an amenable number.

338601809 is a deficient number, since it is larger than the sum of its proper divisors (102003631).

338601809 is a wasteful number, since it uses less digits than its factorization.

338601809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 338601809 is about 18401.1360790577. The cubic root of 338601809 is about 696.9951530683.

The spelling of 338601809 in words is "three hundred thirty-eight million, six hundred one thousand, eight hundred nine".