1148638360 has 64 divisors (see below), whose sum is σ = 2716164000. Its totient is φ = 436617216.

The previous prime is 1148638321. The next prime is 1148638363. The reversal of 1148638360 is 638368411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148638363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54616 + ... + 72664.

Almost surely, 2^1148638360 is an apocalyptic number.

1148638360 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 1148638360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358082000).

1148638360 is an abundant number, since it is smaller than the sum of its proper divisors (1567525640).

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

1148638360 is a wasteful number, since it uses less digits than its factorization.

1148638360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140 (or 18136 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1148638360 is about 33891.5676828323. The cubic root of 1148638360 is about 1047.2758895739.

The spelling of 1148638360 in words is "one billion, one hundred forty-eight million, six hundred thirty-eight thousand, three hundred sixty".