13001808 has 40 divisors (see below), whose sum is σ = 35051328. Its totient is φ = 4145152.

The previous prime is 13001789. The next prime is 13001827. The reversal of 13001808 is 80810031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13001789) and next prime (13001827).

It is a super-2 number, since 2×13001808² = 338094022537728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4785 + ... + 6992.

Almost surely, 2^13001808 is an apocalyptic number.

It is an amenable number.

13001808 is an abundant number, since it is smaller than the sum of its proper divisors (22049520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13001808 is a wasteful number, since it uses less digits than its factorization.

13001808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11811 (or 11805 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 13001808 is about 3605.8019912358. The cubic root of 13001808 is about 235.1443688132.

Adding to 13001808 its reverse (80810031), we get a palindrome (93811839).

The spelling of 13001808 in words is "thirteen million, one thousand, eight hundred eight".