13779224 has 16 divisors (see below), whose sum is σ = 25875720. Its totient is φ = 6879040.

The previous prime is 13779223. The next prime is 13779251. The reversal of 13779224 is 42297731.

Its product of digits (21168) is a multiple of the sum of its prime divisors (2646).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13779223) 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, 8564 + ... + 10044.

Almost surely, 2^13779224 is an apocalyptic number.

It is an amenable number.

13779224 is a deficient number, since it is larger than the sum of its proper divisors (12096496).

13779224 is a wasteful number, since it uses less digits than its factorization.

13779224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2646 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 13779224 is about 3712.0377153256. The cubic root of 13779224 is about 239.7405993611.

It can be divided in two parts, 1377 and 9224, that added together give a palindrome (10601).

The spelling of 13779224 in words is "thirteen million, seven hundred seventy-nine thousand, two hundred twenty-four".