13089420 has 36 divisors (see below), whose sum is σ = 39705120. Its totient is φ = 3490464.

The previous prime is 13089413. The next prime is 13089437. The reversal of 13089420 is 2498031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 36180 + ... + 36539.

It is an arithmetic number, because the mean of its divisors is an integer number (1102920).

Almost surely, 2^13089420 is an apocalyptic number.

13089420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13089420 is an abundant number, since it is smaller than the sum of its proper divisors (26615700).

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

13089420 is a wasteful number, since it uses less digits than its factorization.

13089420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72734 (or 72729 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13089420 is about 3617.9303475882. The cubic root of 13089420 is about 235.6713562118.

The spelling of 13089420 in words is "thirteen million, eighty-nine thousand, four hundred twenty".