13445402000 has 80 divisors (see below), whose sum is σ = 34423479792. Its totient is φ = 5061785600.

The previous prime is 13445401987. The next prime is 13445402039. The reversal of 13445402000 is 20454431.

It can be written as a sum of positive squares in 8 ways, for example, as 5194949776 + 8250452224 = 72076^2 + 90832^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 163727 + ... + 231726.

Almost surely, 2^13445402000 is an apocalyptic number.

13445402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13445402000 is an abundant number, since it is smaller than the sum of its proper divisors (20978077792).

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

13445402000 is a wasteful number, since it uses less digits than its factorization.

13445402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395493 (or 395477 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 13445402000 its reverse (20454431), we get a palindrome (13465856431).

The spelling of 13445402000 in words is "thirteen billion, four hundred forty-five million, four hundred two thousand".