1249198048 has 24 divisors (see below), whose sum is σ = 2810696112. Its totient is φ = 535370496.

The previous prime is 1249198019. The next prime is 1249198051. The reversal of 1249198048 is 8408919421.

It is a junction number, because it is equal to n+sod(n) for n = 1249197989 and 1249198007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2788165 + ... + 2788612.

It is an arithmetic number, because the mean of its divisors is an integer number (117112338).

Almost surely, 2^1249198048 is an apocalyptic number.

It is an amenable number.

1249198048 is an abundant number, since it is smaller than the sum of its proper divisors (1561498064).

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

1249198048 is an equidigital number, since it uses as much as digits as its factorization.

1249198048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576794 (or 5576786 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 1249198048 is about 35343.9959257580. The cubic root of 1249198048 is about 1076.9869286390.

The spelling of 1249198048 in words is "one billion, two hundred forty-nine million, one hundred ninety-eight thousand, forty-eight".