13401560 has 32 divisors (see below), whose sum is σ = 30542400. Its totient is φ = 5291520.

The previous prime is 13401539. The next prime is 13401581. The reversal of 13401560 is 6510431.

It is an interprime number because it is at equal distance from previous prime (13401539) and next prime (13401581).

It is a super-3 number, since 3×13401560³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040 + ... + 5280.

It is an arithmetic number, because the mean of its divisors is an integer number (954450).

Almost surely, 2^13401560 is an apocalyptic number.

13401560 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 13401560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15271200).

13401560 is an abundant number, since it is smaller than the sum of its proper divisors (17140840).

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

13401560 is a wasteful number, since it uses less digits than its factorization.

13401560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331 (or 4327 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13401560 is about 3660.8141171056. The cubic root of 13401560 is about 237.5299906726.

Adding to 13401560 its reverse (6510431), we get a palindrome (19911991).

The spelling of 13401560 in words is "thirteen million, four hundred one thousand, five hundred sixty".