1144011648 has 128 divisors (see below), whose sum is σ = 3306391200. Its totient is φ = 348364800.

The previous prime is 1144011637. The next prime is 1144011653. The reversal of 1144011648 is 8461104411.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 503058 + ... + 505326.

Almost surely, 2^1144011648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144011648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653195600).

1144011648 is an abundant number, since it is smaller than the sum of its proper divisors (2162379552).

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

1144011648 is a wasteful number, since it uses less digits than its factorization.

1144011648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1144011648 is about 33823.2412403069. The cubic root of 1144011648 is about 1045.8678559392.

The spelling of 1144011648 in words is "one billion, one hundred forty-four million, eleven thousand, six hundred forty-eight".