13790388 has 24 divisors (see below), whose sum is σ = 32786208. Its totient is φ = 4509856.

The previous prime is 13790369. The next prime is 13790389. The reversal of 13790388 is 88309731.

13790388 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13790389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10206 + ... + 11477.

It is an arithmetic number, because the mean of its divisors is an integer number (1366092).

Almost surely, 2^13790388 is an apocalyptic number.

It is an amenable number.

13790388 is an abundant number, since it is smaller than the sum of its proper divisors (18995820).

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

13790388 is a wasteful number, since it uses less digits than its factorization.

13790388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21743 (or 21741 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 13790388 is about 3713.5411671341. The cubic root of 13790388 is about 239.8053282493.

It can be divided in two parts, 137 and 90388, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 13790388 in words is "thirteen million, seven hundred ninety thousand, three hundred eighty-eight".