13672220 has 24 divisors (see below), whose sum is σ = 28994784. Its totient is φ = 5414976.

The previous prime is 13672213. The next prime is 13672223. The reversal of 13672220 is 2227631.

13672220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13672223) 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, 1259 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (1208116).

Almost surely, 2^13672220 is an apocalyptic number.

13672220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13672220 is an abundant number, since it is smaller than the sum of its proper divisors (15322564).

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

13672220 is a wasteful number, since it uses less digits than its factorization.

13672220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749 (or 6747 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13672220 is about 3697.5965166578. The cubic root of 13672220 is about 239.1184091401.

Adding to 13672220 its reverse (2227631), we get a palindrome (15899851).

The spelling of 13672220 in words is "thirteen million, six hundred seventy-two thousand, two hundred twenty".