13776940 has 24 divisors (see below), whose sum is σ = 29070720. Its totient is φ = 5484288.

The previous prime is 13776937. The next prime is 13776947. The reversal of 13776940 is 4967731.

It is a self number, because there is not a number n which added to its sum of digits gives 13776940.

It is not an unprimeable number, because it can be changed into a prime (13776947) 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, 2916 + ... + 6004.

It is an arithmetic number, because the mean of its divisors is an integer number (1211280).

Almost surely, 2^13776940 is an apocalyptic number.

13776940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13776940 is an abundant number, since it is smaller than the sum of its proper divisors (15293780).

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

13776940 is a wasteful number, since it uses less digits than its factorization.

13776940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321 (or 3319 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 13776940 is about 3711.7300548397. The cubic root of 13776940 is about 239.7273524181.

It can be divided in two parts, 137 and 76940, that added together give a palindrome (77077).

The spelling of 13776940 in words is "thirteen million, seven hundred seventy-six thousand, nine hundred forty".