1148918904 has 160 divisors (see below), whose sum is σ = 3871612800. Its totient is φ = 310962240.

The previous prime is 1148918861. The next prime is 1148918909. The reversal of 1148918904 is 4098198411.

It is a super-2 number, since 2×1148918904² = 2640029295937122432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1148918904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148918909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 79519 + ... + 92849.

It is an arithmetic number, because the mean of its divisors is an integer number (24197580).

Almost surely, 2^1148918904 is an apocalyptic number.

1148918904 is a gapful number since it is divisible by the number (14) 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 1148918904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935806400).

1148918904 is an abundant number, since it is smaller than the sum of its proper divisors (2722693896).

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

1148918904 is a wasteful number, since it uses less digits than its factorization.

1148918904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13375 (or 13362 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 1148918904 is about 33895.7062767543. The cubic root of 1148918904 is about 1047.3611450267.

The spelling of 1148918904 in words is "one billion, one hundred forty-eight million, nine hundred eighteen thousand, nine hundred four".