13788045 has 24 divisors (see below), whose sum is σ = 23995296. Its totient is φ = 7324128.

The previous prime is 13788041. The next prime is 13788059. The reversal of 13788045 is 54088731.

13788045 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 not a de Polignac number, because 13788045 - 2² = 13788041 is a prime.

It is a super-2 number, since 2×13788045² = 380220369844050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15174 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (999804).

Almost surely, 2^13788045 is an apocalyptic number.

13788045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13788045 is a deficient number, since it is larger than the sum of its proper divisors (10207251).

13788045 is a wasteful number, since it uses less digits than its factorization.

13788045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 13788045 is about 3713.2256866504. The cubic root of 13788045 is about 239.7917464291.

The spelling of 13788045 in words is "thirteen million, seven hundred eighty-eight thousand, forty-five".