1148649444 has 48 divisors (see below), whose sum is σ = 2994667200. Its totient is φ = 380737728.

The previous prime is 1148649419. The next prime is 1148649449. The reversal of 1148649444 is 4449468411.

It is a happy number.

1148649444 is a `hidden beast` number, since 1 + 148 + 64 + 9 + 444 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1148649444.

It is not an unprimeable number, because it can be changed into a prime (1148649449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10377 + ... + 49040.

It is an arithmetic number, because the mean of its divisors is an integer number (62388900).

Almost surely, 2^1148649444 is an apocalyptic number.

It is an amenable number.

1148649444 is an abundant number, since it is smaller than the sum of its proper divisors (1846017756).

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

1148649444 is a wasteful number, since it uses less digits than its factorization.

1148649444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59609 (or 59601 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 1148649444 is about 33891.7312039382. The cubic root of 1148649444 is about 1047.2792581910.

The spelling of 1148649444 in words is "one billion, one hundred forty-eight million, six hundred forty-nine thousand, four hundred forty-four".