1253379248 has 20 divisors (see below), whose sum is σ = 2649188328. Its totient is φ = 569717760.

The previous prime is 1253379241. The next prime is 1253379269. The reversal of 1253379248 is 8429733521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1253379199 and 1253379208.

It is not an unprimeable number, because it can be changed into a prime (1253379241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560561 + ... + 3560912.

Almost surely, 2^1253379248 is an apocalyptic number.

It is an amenable number.

1253379248 is an abundant number, since it is smaller than the sum of its proper divisors (1395809080).

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

1253379248 is a wasteful number, since it uses less digits than its factorization.

1253379248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121492 (or 7121486 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 1253379248 is about 35403.0965877280. The cubic root of 1253379248 is about 1078.1871874657.

The spelling of 1253379248 in words is "one billion, two hundred fifty-three million, three hundred seventy-nine thousand, two hundred forty-eight".