1249845488 has 10 divisors (see below), whose sum is σ = 2421575664. Its totient is φ = 624922736.

The previous prime is 1249845473. The next prime is 1249845497. The reversal of 1249845488 is 8845489421.

It is a super-2 number, since 2×1249845488² = 3124227487747916288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39057656 + ... + 39057687.

Almost surely, 2^1249845488 is an apocalyptic number.

It is an amenable number.

1249845488 is a deficient number, since it is larger than the sum of its proper divisors (1171730176).

1249845488 is an equidigital number, since it uses as much as digits as its factorization.

1249845488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78115351 (or 78115345 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The square root of 1249845488 is about 35353.1538621380. The cubic root of 1249845488 is about 1077.1729583853.

The spelling of 1249845488 in words is "one billion, two hundred forty-nine million, eight hundred forty-five thousand, four hundred eighty-eight".