13874520 has 128 divisors (see below), whose sum is σ = 47485440. Its totient is φ = 3210240.

The previous prime is 13874491. The next prime is 13874521. The reversal of 13874520 is 2547831.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13874521) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 30132 + ... + 30588.

It is an arithmetic number, because the mean of its divisors is an integer number (370980).

Almost surely, 2^13874520 is an apocalyptic number.

13874520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13874520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23742720).

13874520 is an abundant number, since it is smaller than the sum of its proper divisors (33610920).

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

13874520 is a wasteful number, since it uses less digits than its factorization.

13874520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13874520 is about 3724.8516748993. The cubic root of 13874520 is about 240.2920056865.

The spelling of 13874520 in words is "thirteen million, eight hundred seventy-four thousand, five hundred twenty".