1149975344 has 80 divisors (see below), whose sum is σ = 2707540992. Its totient is φ = 462468864.

The previous prime is 1149975341. The next prime is 1149975347. The reversal of 1149975344 is 4435799411.

It is an interprime number because it is at equal distance from previous prime (1149975341) and next prime (1149975347).

It is not an unprimeable number, because it can be changed into a prime (1149975341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 132317 + ... + 140739.

Almost surely, 2^1149975344 is an apocalyptic number.

1149975344 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 1149975344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353770496).

1149975344 is an abundant number, since it is smaller than the sum of its proper divisors (1557565648).

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

1149975344 is a wasteful number, since it uses less digits than its factorization.

1149975344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8508 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 1149975344 is about 33911.2863807907. The cubic root of 1149975344 is about 1047.6820656301.

The spelling of 1149975344 in words is "one billion, one hundred forty-nine million, nine hundred seventy-five thousand, three hundred forty-four".