13741780 has 48 divisors (see below), whose sum is σ = 32916240. Its totient is φ = 4773888.

The previous prime is 13741771. The next prime is 13741801. The reversal of 13741780 is 8714731.

It can be written as a sum of positive squares in 8 ways, for example, as 1153476 + 12588304 = 1074^2 + 3548^2 .

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 15 ways as a sum of consecutive naturals, for example, 2866 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (685755).

Almost surely, 2^13741780 is an apocalyptic number.

13741780 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 13741780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16458120).

13741780 is an abundant number, since it is smaller than the sum of its proper divisors (19174460).

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

13741780 is a wasteful number, since it uses less digits than its factorization.

13741780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 13741780 is about 3706.9906932713. The cubic root of 13741780 is about 239.5232433716.

The spelling of 13741780 in words is "thirteen million, seven hundred forty-one thousand, seven hundred eighty".