13345690 has 8 divisors (see below), whose sum is σ = 24022260. Its totient is φ = 5338272.

The previous prime is 13345687. The next prime is 13345721. The reversal of 13345690 is 9654331.

It can be written as a sum of positive squares in 2 ways, for example, as 13010449 + 335241 = 3607^2 + 579^2 .

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

It is a super-2 number, since 2×13345690² = 356214883152200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667275 + ... + 667294.

Almost surely, 2^13345690 is an apocalyptic number.

13345690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13345690 is a deficient number, since it is larger than the sum of its proper divisors (10676570).

13345690 is a wasteful number, since it uses less digits than its factorization.

13345690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334576.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 13345690 is about 3653.1753311332. The cubic root of 13345690 is about 237.1994499237.

The spelling of 13345690 in words is "thirteen million, three hundred forty-five thousand, six hundred ninety".