13071432 has 64 divisors (see below), whose sum is σ = 36230400. Its totient is φ = 3896640.

The previous prime is 13071427. The next prime is 13071433. The reversal of 13071432 is 23417031.

13071432 = T₃₇₃ + T₃₇₄ + ... + T₅₀₆.

It is a junction number, because it is equal to n+sod(n) for n = 13071399 and 13071408.

It is not an unprimeable number, because it can be changed into a prime (13071433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17319 + ... + 18057.

It is an arithmetic number, because the mean of its divisors is an integer number (566100).

Almost surely, 2^13071432 is an apocalyptic number.

13071432 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 13071432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18115200).

13071432 is an abundant number, since it is smaller than the sum of its proper divisors (23158968).

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

13071432 is a wasteful number, since it uses less digits than its factorization.

13071432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13071432 is about 3615.4435412547. The cubic root of 13071432 is about 235.5633504138.

Adding to 13071432 its reverse (23417031), we get a palindrome (36488463).

The spelling of 13071432 in words is "thirteen million, seventy-one thousand, four hundred thirty-two".