13701440 has 56 divisors (see below), whose sum is σ = 33357312. Its totient is φ = 5358080.

The previous prime is 13701431. The next prime is 13701463. The reversal of 13701440 is 4410731.

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14585 + ... + 15495.

Almost surely, 2^13701440 is an apocalyptic number.

13701440 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 13701440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16678656).

13701440 is an abundant number, since it is smaller than the sum of its proper divisors (19655872).

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

13701440 is an equidigital number, since it uses as much as digits as its factorization.

13701440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13701440 is about 3701.5456231148. The cubic root of 13701440 is about 239.2886343192.

It can be divided in two parts, 13701 and 440, that added together give a palindrome (14141).

The spelling of 13701440 in words is "thirteen million, seven hundred one thousand, four hundred forty".