13004690 has 16 divisors (see below), whose sum is σ = 23471640. Its totient is φ = 5187840.

The previous prime is 13004671. The next prime is 13004713. The reversal of 13004690 is 9640031.

It can be written as a sum of positive squares in 4 ways, for example, as 9174841 + 3829849 = 3029^2 + 1957^2 .

It is a super-2 number, since 2×13004690² = 338243923992200, which contains 22 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 2666 + ... + 5754.

Almost surely, 2^13004690 is an apocalyptic number.

13004690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13004690 is a deficient number, since it is larger than the sum of its proper divisors (10466950).

13004690 is a wasteful number, since it uses less digits than its factorization.

13004690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13004690 is about 3606.2016027948. The cubic root of 13004690 is about 235.1617416792.

The spelling of 13004690 in words is "thirteen million, four thousand, six hundred ninety".