339640957 has 4 divisors (see below), whose sum is σ = 340514460. Its totient is φ = 338767456.

The previous prime is 339640937. The next prime is 339640963. The reversal of 339640957 is 759046933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 230250276 + 109390681 = 15174^2 + 10459^2 .

It is a cyclic number.

It is not a de Polignac number, because 339640957 - 2¹¹ = 339638909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339640937) 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, 436168 + ... + 436945.

It is an arithmetic number, because the mean of its divisors is an integer number (85128615).

Almost surely, 2^339640957 is an apocalyptic number.

It is an amenable number.

339640957 is a deficient number, since it is larger than the sum of its proper divisors (873503).

339640957 is an equidigital number, since it uses as much as digits as its factorization.

339640957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873502.

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 339640957 is about 18429.3504226275. The cubic root of 339640957 is about 697.7074365786.

The spelling of 339640957 in words is "three hundred thirty-nine million, six hundred forty thousand, nine hundred fifty-seven".