13801860 has 96 divisors (see below), whose sum is σ = 43747200. Its totient is φ = 3611520.

The previous prime is 13801849. The next prime is 13801861. The reversal of 13801860 is 6810831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13801861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32731 + ... + 33149.

It is an arithmetic number, because the mean of its divisors is an integer number (455700).

Almost surely, 2^13801860 is an apocalyptic number.

13801860 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 13801860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21873600).

13801860 is an abundant number, since it is smaller than the sum of its proper divisors (29945340).

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

13801860 is a wasteful number, since it uses less digits than its factorization.

13801860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 13801860 is about 3715.0854633507. The cubic root of 13801860 is about 239.8718065390.

It can be divided in two parts, 1380 and 1860, that added together give a triangular number (3240 = T₈₀).

The spelling of 13801860 in words is "thirteen million, eight hundred one thousand, eight hundred sixty".