13733220 has 24 divisors (see below), whose sum is σ = 38453184. Its totient is φ = 3662176.

The previous prime is 13733207. The next prime is 13733221. The reversal of 13733220 is 2233731.

It is not an unprimeable number, because it can be changed into a prime (13733221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114384 + ... + 114503.

It is an arithmetic number, because the mean of its divisors is an integer number (1602216).

Almost surely, 2^13733220 is an apocalyptic number.

13733220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13733220 is an abundant number, since it is smaller than the sum of its proper divisors (24719964).

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

13733220 is a wasteful number, since it uses less digits than its factorization.

13733220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228899 (or 228897 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 13733220 is about 3705.8359380847. The cubic root of 13733220 is about 239.4734986069.

Adding to 13733220 its reverse (2233731), we get a palindrome (15966951).

The spelling of 13733220 in words is "thirteen million, seven hundred thirty-three thousand, two hundred twenty".