13040894928 has 160 divisors (see below), whose sum is σ = 36143936640. Its totient is φ = 4043898880.

The previous prime is 13040894927. The next prime is 13040894947. The reversal of 13040894928 is 82949804031.

It is a super-2 number, since 2×13040894928² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040894921) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4735600 + ... + 4738352.

It is an arithmetic number, because the mean of its divisors is an integer number (225899604).

Almost surely, 2^13040894928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13040894928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18071968320).

13040894928 is an abundant number, since it is smaller than the sum of its proper divisors (23103041712).

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

13040894928 is a wasteful number, since it uses less digits than its factorization.

13040894928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2911 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 13040894928 in words is "thirteen billion, forty million, eight hundred ninety-four thousand, nine hundred twenty-eight".