13875380 has 24 divisors (see below), whose sum is σ = 29431080. Its totient is φ = 5494400.

The previous prime is 13875361. The next prime is 13875391. The reversal of 13875380 is 8357831.

It can be written as a sum of positive squares in 4 ways, for example, as 1073296 + 12802084 = 1036^2 + 3578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13875380.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (1226295).

Almost surely, 2^13875380 is an apocalyptic number.

13875380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13875380 is an abundant number, since it is smaller than the sum of its proper divisors (15555700).

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

13875380 is a wasteful number, since it uses less digits than its factorization.

13875380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 13875380 is about 3724.9671139488. The cubic root of 13875380 is about 240.2969703473.

The spelling of 13875380 in words is "thirteen million, eight hundred seventy-five thousand, three hundred eighty".