338042420 has 12 divisors (see below), whose sum is σ = 709889124. Its totient is φ = 135216960.

The previous prime is 338042407. The next prime is 338042423. The reversal of 338042420 is 24240833.

It can be written as a sum of positive squares in 2 ways, for example, as 91049764 + 246992656 = 9542^2 + 15716^2 .

It is a super-2 number, since 2×338042420² = 228545355438912800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338042420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338042423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8451041 + ... + 8451080.

It is an arithmetic number, because the mean of its divisors is an integer number (59157427).

Almost surely, 2^338042420 is an apocalyptic number.

It is an amenable number.

338042420 is an abundant number, since it is smaller than the sum of its proper divisors (371846704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338042420 is a wasteful number, since it uses less digits than its factorization.

338042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16902130 (or 16902128 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 338042420 is about 18385.9299465651. The cubic root of 338042420 is about 696.6111166022.

The spelling of 338042420 in words is "three hundred thirty-eight million, forty-two thousand, four hundred twenty".