13378420 has 24 divisors (see below), whose sum is σ = 30649248. Its totient is φ = 4864800.

The previous prime is 13378403. The next prime is 13378429. The reversal of 13378420 is 2487331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30186 + ... + 30625.

It is an arithmetic number, because the mean of its divisors is an integer number (1277052).

Almost surely, 2^13378420 is an apocalyptic number.

13378420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13378420 is an abundant number, since it is smaller than the sum of its proper divisors (17270828).

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

13378420 is a wasteful number, since it uses less digits than its factorization.

13378420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60831 (or 60829 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 13378420 is about 3657.6522524702. The cubic root of 13378420 is about 237.3932003654.

The spelling of 13378420 in words is "thirteen million, three hundred seventy-eight thousand, four hundred twenty".