1148287320 has 128 divisors (see below), whose sum is σ = 3846528000. Its totient is φ = 304698240.

The previous prime is 1148287313. The next prime is 1148287379. The reversal of 1148287320 is 237828411.

1148287320 is a `hidden beast` number, since 11 + 48 + 287 + 320 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225361 + ... + 230399.

It is an arithmetic number, because the mean of its divisors is an integer number (30051000).

Almost surely, 2^1148287320 is an apocalyptic number.

1148287320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148287320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923264000).

1148287320 is an abundant number, since it is smaller than the sum of its proper divisors (2698240680).

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

1148287320 is a wasteful number, since it uses less digits than its factorization.

1148287320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270 (or 5260 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1148287320 is about 33886.3884177703. The cubic root of 1148287320 is about 1047.1691913014.

The spelling of 1148287320 in words is "one billion, one hundred forty-eight million, two hundred eighty-seven thousand, three hundred twenty".