338740 has 12 divisors (see below), whose sum is σ = 711396. Its totient is φ = 135488.

The previous prime is 338731. The next prime is 338747. The reversal of 338740 is 47833.

It can be written as a sum of positive squares in 2 ways, for example, as 119716 + 219024 = 346^2 + 468^2 .

It is a super-2 number, since 2×338740² = 229489575200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338747) 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, 8449 + ... + 8488.

It is an arithmetic number, because the mean of its divisors is an integer number (59283).

2³³⁸⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

338740 is an abundant number, since it is smaller than the sum of its proper divisors (372656).

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

338740 is a wasteful number, since it uses less digits than its factorization.

338740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16946 (or 16944 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 338740 is about 582.0137455421. The cubic root of 338740 is about 69.7089959962.

It can be divided in two parts, 33 and 8740, that multiplied together give a triangular number (288420 = T₇₅₉).

The spelling of 338740 in words is "three hundred thirty-eight thousand, seven hundred forty".