1253304 has 72 divisors (see below), whose sum is σ = 3711240. Its totient is φ = 381888.

The previous prime is 1253279. The next prime is 1253323. The reversal of 1253304 is 4033521.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 12117 + ... + 12219.

It is an arithmetic number, because the mean of its divisors is an integer number (51545).

2^1253304 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 1253304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855620).

1253304 is an abundant number, since it is smaller than the sum of its proper divisors (2457936).

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

1253304 is a wasteful number, since it uses less digits than its factorization.

1253304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1253304 is about 1119.5106073638. The cubic root of 1253304 is about 107.8165610317.

Adding to 1253304 its reverse (4033521), we get a palindrome (5286825).

The spelling of 1253304 in words is "one million, two hundred fifty-three thousand, three hundred four".