13409472 has 56 divisors (see below), whose sum is σ = 35755072. Its totient is φ = 4435200.

The previous prime is 13409441. The next prime is 13409491. The reversal of 13409472 is 27490431.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40347 + ... + 40677.

Almost surely, 2^13409472 is an apocalyptic number.

13409472 is a gapful number since it is divisible by the number (12) 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 13409472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17877536).

13409472 is an abundant number, since it is smaller than the sum of its proper divisors (22345600).

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

13409472 is a wasteful number, since it uses less digits than its factorization.

13409472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13409472 is about 3661.8945916015. The cubic root of 13409472 is about 237.5767257185.

The spelling of 13409472 in words is "thirteen million, four hundred nine thousand, four hundred seventy-two".