1248949648 has 20 divisors (see below), whose sum is σ = 2547200560. Its totient is φ = 591607584.

The previous prime is 1248949643. The next prime is 1248949661. The reversal of 1248949648 is 8469498421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1248949643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053890 + ... + 2054497.

It is an arithmetic number, because the mean of its divisors is an integer number (127360028).

Almost surely, 2^1248949648 is an apocalyptic number.

It is an amenable number.

1248949648 is an abundant number, since it is smaller than the sum of its proper divisors (1298250912).

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

1248949648 is a wasteful number, since it uses less digits than its factorization.

1248949648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108414 (or 4108408 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 1248949648 is about 35340.4817171470. The cubic root of 1248949648 is about 1076.9155384946.

The spelling of 1248949648 in words is "one billion, two hundred forty-eight million, nine hundred forty-nine thousand, six hundred forty-eight".