1253460 has 48 divisors (see below), whose sum is σ = 3782016. Its totient is φ = 308352.

The previous prime is 1253453. The next prime is 1253471. The reversal of 1253460 is 643521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24 + ... + 1583.

It is an arithmetic number, because the mean of its divisors is an integer number (78792).

2^1253460 is an apocalyptic number.

1253460 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 1253460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891008).

1253460 is an abundant number, since it is smaller than the sum of its proper divisors (2528556).

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

1253460 is a wasteful number, since it uses less digits than its factorization.

1253460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1253460 is about 1119.5802784973. The cubic root of 1253460 is about 107.8210341911.

Adding to 1253460 its reverse (643521), we get a palindrome (1896981).

The spelling of 1253460 in words is "one million, two hundred fifty-three thousand, four hundred sixty".