13045940 has 48 divisors (see below), whose sum is σ = 28788480. Its totient is φ = 4959360.

The previous prime is 13045933. The next prime is 13045943. The reversal of 13045940 is 4954031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045943) 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, 48005 + ... + 48275.

It is an arithmetic number, because the mean of its divisors is an integer number (599760).

Almost surely, 2^13045940 is an apocalyptic number.

13045940 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 13045940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14394240).

13045940 is an abundant number, since it is smaller than the sum of its proper divisors (15742540).

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

13045940 is a wasteful number, since it uses less digits than its factorization.

13045940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13045940 is about 3611.9163888440. The cubic root of 13045940 is about 235.4101183166.

Adding to 13045940 its reverse (4954031), we get a palindrome (17999971).

The spelling of 13045940 in words is "thirteen million, forty-five thousand, nine hundred forty".