13370381 has 8 divisors (see below), whose sum is σ = 14317560. Its totient is φ = 12441088.

The previous prime is 13370369. The next prime is 13370443. The reversal of 13370381 is 18307331.

It can be written as a sum of positive squares in 4 ways, for example, as 6300100 + 7070281 = 2510^2 + 2659^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13370381 - 2⁶ = 13370317 is a prime.

It is a super-2 number, since 2×13370381² = 357534176170322, 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 13370381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13370311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2906 + ... + 5931.

It is an arithmetic number, because the mean of its divisors is an integer number (1789695).

Almost surely, 2^13370381 is an apocalyptic number.

It is an amenable number.

13370381 is a deficient number, since it is larger than the sum of its proper divisors (947179).

13370381 is an equidigital number, since it uses as much as digits as its factorization.

13370381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8943.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13370381 is about 3656.5531583720. The cubic root of 13370381 is about 237.3456415277.

The spelling of 13370381 in words is "thirteen million, three hundred seventy thousand, three hundred eighty-one".