338790913 has 16 divisors (see below), whose sum is σ = 354436992. Its totient is φ = 323568000.

The previous prime is 338790877. The next prime is 338790931. The reversal of 338790913 is 319097833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338790913 is a prime.

It is a super-2 number, since 2×338790913² = 229558565462747138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338790913.

It is not an unprimeable number, because it can be changed into a prime (338791913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526570 + ... + 527212.

It is an arithmetic number, because the mean of its divisors is an integer number (22152312).

Almost surely, 2^338790913 is an apocalyptic number.

It is an amenable number.

338790913 is a deficient number, since it is larger than the sum of its proper divisors (15646079).

338790913 is a wasteful number, since it uses less digits than its factorization.

338790913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 338790913 is about 18406.2737402224. The cubic root of 338790913 is about 697.1248826785.

The spelling of 338790913 in words is "three hundred thirty-eight million, seven hundred ninety thousand, nine hundred thirteen".