13775378 has 8 divisors (see below), whose sum is σ = 20846268. Its totient is φ = 6826624.

The previous prime is 13775369. The next prime is 13775383. The reversal of 13775378 is 87357731.

It can be written as a sum of positive squares in 2 ways, for example, as 10582009 + 3193369 = 3253^2 + 1787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13775378² = 379522078085768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30251 + ... + 30702.

Almost surely, 2^13775378 is an apocalyptic number.

13775378 is a deficient number, since it is larger than the sum of its proper divisors (7070890).

13775378 is a wasteful number, since it uses less digits than its factorization.

13775378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61068.

The product of its digits is 123480, while the sum is 41.

The square root of 13775378 is about 3711.5196348666. The cubic root of 13775378 is about 239.7182921508.

The spelling of 13775378 in words is "thirteen million, seven hundred seventy-five thousand, three hundred seventy-eight".