13032447400 has 96 divisors (see below), whose sum is σ = 34658496000. Its totient is φ = 4464472320.

The previous prime is 13032447397. The next prime is 13032447403. The reversal of 13032447400 is 474423031.

It is an interprime number because it is at equal distance from previous prime (13032447397) and next prime (13032447403).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13032447403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2011366 + ... + 2017834.

It is an arithmetic number, because the mean of its divisors is an integer number (361026000).

Almost surely, 2^13032447400 is an apocalyptic number.

13032447400 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 13032447400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17329248000).

13032447400 is an abundant number, since it is smaller than the sum of its proper divisors (21626048600).

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

13032447400 is a wasteful number, since it uses less digits than its factorization.

13032447400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931 (or 7922 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 13032447400 in words is "thirteen billion, thirty-two million, four hundred forty-seven thousand, four hundred".