13860432 has 60 divisors (see below), whose sum is σ = 39215124. Its totient is φ = 4569600.

The previous prime is 13860391. The next prime is 13860449. The reversal of 13860432 is 23406831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10265616 + 3594816 = 3204^2 + 1896^2 .

It is a super-2 number, since 2×13860432² = 384223150453248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13860396 and 13860405.

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 11 ways as a sum of consecutive naturals, for example, 14068 + ... + 15020.

Almost surely, 2^13860432 is an apocalyptic number.

13860432 is a gapful number since it is divisible by the number (12) 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 13860432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19607562).

13860432 is an abundant number, since it is smaller than the sum of its proper divisors (25354692).

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

13860432 is a wasteful number, since it uses less digits than its factorization.

13860432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13860432 is about 3722.9601125986. The cubic root of 13860432 is about 240.2106483928.

The spelling of 13860432 in words is "thirteen million, eight hundred sixty thousand, four hundred thirty-two".