1149838480 has 80 divisors (see below), whose sum is σ = 3060339840. Its totient is φ = 393578496.

The previous prime is 1149838477. The next prime is 1149838499. The reversal of 1149838480 is 848389411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1149838480.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439416 + ... + 442024.

It is an arithmetic number, because the mean of its divisors is an integer number (38254248).

Almost surely, 2^1149838480 is an apocalyptic number.

1149838480 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 1149838480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1530169920).

1149838480 is an abundant number, since it is smaller than the sum of its proper divisors (1910501360).

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

1149838480 is a wasteful number, since it uses less digits than its factorization.

1149838480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416 (or 3410 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1149838480 is about 33909.2683495236. The cubic root of 1149838480 is about 1047.6405007833.

The spelling of 1149838480 in words is "one billion, one hundred forty-nine million, eight hundred thirty-eight thousand, four hundred eighty".