13785290 has 8 divisors (see below), whose sum is σ = 24813540. Its totient is φ = 5514112.

The previous prime is 13785271. The next prime is 13785293. The reversal of 13785290 is 9258731.

It can be written as a sum of positive squares in 2 ways, for example, as 11992369 + 1792921 = 3463^2 + 1339^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13785290.

It is not an unprimeable number, because it can be changed into a prime (13785293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689255 + ... + 689274.

Almost surely, 2^13785290 is an apocalyptic number.

13785290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13785290 is a deficient number, since it is larger than the sum of its proper divisors (11028250).

13785290 is a wasteful number, since it uses less digits than its factorization.

13785290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378536.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13785290 is about 3712.8546968606. The cubic root of 13785290 is about 239.7757743735.

The spelling of 13785290 in words is "thirteen million, seven hundred eighty-five thousand, two hundred ninety".