13378528 has 12 divisors (see below), whose sum is σ = 26339040. Its totient is φ = 6689248.

The previous prime is 13378523. The next prime is 13378543. The reversal of 13378528 is 82587331.

It is a super-2 number, since 2×13378528² = 357970022893568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209008 + ... + 209071.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 2^13378528 is an apocalyptic number.

It is an amenable number.

13378528 is a deficient number, since it is larger than the sum of its proper divisors (12960512).

13378528 is an equidigital number, since it uses as much as digits as its factorization.

13378528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418089 (or 418081 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 13378528 is about 3657.6670160090. The cubic root of 13378528 is about 237.3938391652.

The spelling of 13378528 in words is "thirteen million, three hundred seventy-eight thousand, five hundred twenty-eight".