1248877860 has 24 divisors (see below), whose sum is σ = 3496858176. Its totient is φ = 333034080.

The previous prime is 1248877829. The next prime is 1248877891. The reversal of 1248877860 is 687788421.

It is an interprime number because it is at equal distance from previous prime (1248877829) and next prime (1248877891).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10407256 + ... + 10407375.

It is an arithmetic number, because the mean of its divisors is an integer number (145702424).

Almost surely, 2^1248877860 is an apocalyptic number.

1248877860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1248877860 is an abundant number, since it is smaller than the sum of its proper divisors (2247980316).

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

1248877860 is a wasteful number, since it uses less digits than its factorization.

1248877860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20814643 (or 20814641 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The square root of 1248877860 is about 35339.4660401088. The cubic root of 1248877860 is about 1076.8949048648.

The spelling of 1248877860 in words is "one billion, two hundred forty-eight million, eight hundred seventy-seven thousand, eight hundred sixty".