1305472 has 64 divisors (see below), whose sum is σ = 3133440. Its totient is φ = 529920.

The previous prime is 1305449. The next prime is 1305511. The reversal of 1305472 is 2745031.

It is a tau number, because it is divible by the number of its divisors (64).

It is an Ulam number.

It is a congruent 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, 27753 + ... + 27799.

It is an arithmetic number, because the mean of its divisors is an integer number (48960).

2^1305472 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 1305472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566720).

1305472 is an abundant number, since it is smaller than the sum of its proper divisors (1827968).

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

1305472 is an equidigital number, since it uses as much as digits as its factorization.

1305472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1305472 is about 1142.5725359906. The cubic root of 1305472 is about 109.2922047696.

The spelling of 1305472 in words is "one million, three hundred five thousand, four hundred seventy-two".