1253488320 has 336 divisors, whose sum is σ = 4985967168. Its totient is φ = 283115520.

The previous prime is 1253488309. The next prime is 1253488351. The reversal of 1253488320 is 238843521.

1253488320 is a `hidden beast` number, since 1 + 253 + 4 + 88 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1955200 + ... + 1955840.

It is an arithmetic number, because the mean of its divisors is an integer number (14839188).

Almost surely, 2^1253488320 is an apocalyptic number.

1253488320 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 1253488320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492983584).

1253488320 is an abundant number, since it is smaller than the sum of its proper divisors (3732478848).

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

1253488320 is a wasteful number, since it uses less digits than its factorization.

1253488320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1253488320 is about 35404.6369844403. The cubic root of 1253488320 is about 1078.2184620173.

The spelling of 1253488320 in words is "one billion, two hundred fifty-three million, four hundred eighty-eight thousand, three hundred twenty".