338393924 has 36 divisors (see below), whose sum is σ = 673392300. Its totient is φ = 148505280.

The previous prime is 338393903. The next prime is 338393927. The reversal of 338393924 is 429393833.

It can be written as a sum of positive squares in 2 ways, for example, as 195160900 + 143233024 = 13970^2 + 11968^2 .

It is a super-2 number, since 2×338393924² = 229020895600235552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (338393927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1982 + ... + 26090.

Almost surely, 2^338393924 is an apocalyptic number.

It is an amenable number.

338393924 is a deficient number, since it is larger than the sum of its proper divisors (334998376).

338393924 is a wasteful number, since it uses less digits than its factorization.

338393924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24164 (or 24151 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The square root of 338393924 is about 18395.4865116419. The cubic root of 338393924 is about 696.8524835211.

Subtracting 338393924 from its reverse (429393833), we obtain a palindrome (90999909).

The spelling of 338393924 in words is "three hundred thirty-eight million, three hundred ninety-three thousand, nine hundred twenty-four".