13038390 has 48 divisors (see below), whose sum is σ = 34087248. Its totient is φ = 3457728.

The previous prime is 13038373. The next prime is 13038391. The reversal of 13038390 is 9383031.

It is a super-2 number, since 2×13038390² = 339999227584200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13038391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24669 + ... + 25191.

It is an arithmetic number, because the mean of its divisors is an integer number (710151).

Almost surely, 2^13038390 is an apocalyptic number.

13038390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13038390 is an abundant number, since it is smaller than the sum of its proper divisors (21048858).

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

13038390 is a wasteful number, since it uses less digits than its factorization.

13038390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13038390 is about 3610.8710860400. The cubic root of 13038390 is about 235.3646970498.

The spelling of 13038390 in words is "thirteen million, thirty-eight thousand, three hundred ninety".