1144749936 has 80 divisors (see below), whose sum is σ = 3232614528. Its totient is φ = 346195200.

The previous prime is 1144749917. The next prime is 1144749967. The reversal of 1144749936 is 6399474411.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299590 + ... + 303386.

Almost surely, 2^1144749936 is an apocalyptic number.

1144749936 is a gapful number since it is divisible by the number (16) 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 1144749936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1616307264).

1144749936 is an abundant number, since it is smaller than the sum of its proper divisors (2087864592).

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

1144749936 is a wasteful number, since it uses less digits than its factorization.

1144749936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390 (or 4384 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 1144749936 is about 33834.1533956445. The cubic root of 1144749936 is about 1046.0927911911.

The spelling of 1144749936 in words is "one billion, one hundred forty-four million, seven hundred forty-nine thousand, nine hundred thirty-six".