1140844512 has 96 divisors (see below), whose sum is σ = 3166732800. Its totient is φ = 358622208.

The previous prime is 1140844487. The next prime is 1140844541. The reversal of 1140844512 is 2154480411.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1140844512.

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, 434628 + ... + 437244.

It is an arithmetic number, because the mean of its divisors is an integer number (32986800).

Almost surely, 2^1140844512 is an apocalyptic number.

1140844512 is a gapful number since it is divisible by the number (12) 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 1140844512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583366400).

1140844512 is an abundant number, since it is smaller than the sum of its proper divisors (2025888288).

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

1140844512 is a wasteful number, since it uses less digits than its factorization.

1140844512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 1140844512 is about 33776.3898603744. The cubic root of 1140844512 is about 1044.9018205572.

The spelling of 1140844512 in words is "one billion, one hundred forty million, eight hundred forty-four thousand, five hundred twelve".