1148246640 has 120 divisors (see below), whose sum is σ = 4083073488. Its totient is φ = 288184320.

The previous prime is 1148246629. The next prime is 1148246653. The reversal of 1148246640 is 466428411.

It is a happy number.

1148246640 is a `hidden beast` number, since 1 + 1 + 4 + 8 + 2 + 4 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1148246595 and 1148246604.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 34666 + ... + 59145.

Almost surely, 2^1148246640 is an apocalyptic number.

1148246640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148246640 is an abundant number, since it is smaller than the sum of its proper divisors (2934826848).

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

1148246640 is a wasteful number, since it uses less digits than its factorization.

1148246640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93847 (or 93838 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 1148246640 is about 33885.7881714444. The cubic root of 1148246640 is about 1047.1568252483.

The spelling of 1148246640 in words is "one billion, one hundred forty-eight million, two hundred forty-six thousand, six hundred forty".