13158240 has 96 divisors (see below), whose sum is σ = 42094080. Its totient is φ = 3454464.

The previous prime is 13158227. The next prime is 13158247. The reversal of 13158240 is 4285131.

Added to its reverse (4285131) it gives a triangular number (17443371 = T₅₉₀₆).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13158240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13158247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37747 + ... + 38093.

It is an arithmetic number, because the mean of its divisors is an integer number (438480).

Almost surely, 2^13158240 is an apocalyptic number.

13158240 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 13158240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21047040).

13158240 is an abundant number, since it is smaller than the sum of its proper divisors (28935840).

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

13158240 is a wasteful number, since it uses less digits than its factorization.

13158240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13158240 is about 3627.4288414799. The cubic root of 13158240 is about 236.0836627633.

Adding to 13158240 its reverse (4285131), we get a triangular number (17443371 = T₅₉₀₆).

The spelling of 13158240 in words is "thirteen million, one hundred fifty-eight thousand, two hundred forty".