13775740 has 24 divisors (see below), whose sum is σ = 31559472. Its totient is φ = 5009280.

The previous prime is 13775719. The next prime is 13775753. The reversal of 13775740 is 4757731.

It is a junction number, because it is equal to n+sod(n) for n = 13775696 and 13775705.

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 7 ways as a sum of consecutive naturals, for example, 31089 + ... + 31528.

It is an arithmetic number, because the mean of its divisors is an integer number (1314978).

Almost surely, 2^13775740 is an apocalyptic number.

13775740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13775740 is an abundant number, since it is smaller than the sum of its proper divisors (17783732).

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

13775740 is a wasteful number, since it uses less digits than its factorization.

13775740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62637 (or 62635 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 13775740 is about 3711.5684016329. The cubic root of 13775740 is about 239.7203919664.

Subtracting from 13775740 its reverse (4757731), we obtain a square (9018009 = 3003²).

It can be divided in two parts, 1377 and 5740, that added together give a palindrome (7117).

The spelling of 13775740 in words is "thirteen million, seven hundred seventy-five thousand, seven hundred forty".