13901580 has 288 divisors, whose sum is σ = 56609280. Its totient is φ = 2672640.

The previous prime is 13901579. The next prime is 13901621. The reversal of 13901580 is 8510931.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 235591 + ... + 235649.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^13901580 is an apocalyptic number.

13901580 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 13901580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28304640).

13901580 is an abundant number, since it is smaller than the sum of its proper divisors (42707700).

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

13901580 is a wasteful number, since it uses less digits than its factorization.

13901580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 13901580 is about 3728.4822649437. The cubic root of 13901580 is about 240.4481210938.

The spelling of 13901580 in words is "thirteen million, nine hundred one thousand, five hundred eighty".