13093788 has 12 divisors (see below), whose sum is σ = 30552200. Its totient is φ = 4364592.

The previous prime is 13093781. The next prime is 13093789. The reversal of 13093788 is 88739031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13093781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545563 + ... + 545586.

Almost surely, 2^13093788 is an apocalyptic number.

It is an amenable number.

13093788 is an abundant number, since it is smaller than the sum of its proper divisors (17458412).

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

13093788 is a wasteful number, since it uses less digits than its factorization.

13093788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091156 (or 1091154 counting only the distinct ones).

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

The square root of 13093788 is about 3618.5339572816. The cubic root of 13093788 is about 235.6975681703.

The spelling of 13093788 in words is "thirteen million, ninety-three thousand, seven hundred eighty-eight".