1144184540 has 24 divisors (see below), whose sum is σ = 2461393872. Its totient is φ = 446510720.

The previous prime is 1144184539. The next prime is 1144184543. The reversal of 1144184540 is 454814411.

It is a junction number, because it is equal to n+sod(n) for n = 1144184497 and 1144184506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144184543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696854 + ... + 698493.

It is an arithmetic number, because the mean of its divisors is an integer number (102558078).

Almost surely, 2^1144184540 is an apocalyptic number.

1144184540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144184540 is an abundant number, since it is smaller than the sum of its proper divisors (1317209332).

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

1144184540 is a wasteful number, since it uses less digits than its factorization.

1144184540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395397 (or 1395395 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 1144184540 is about 33825.7969603083. The cubic root of 1144184540 is about 1045.9205398658.

Adding to 1144184540 its reverse (454814411), we get a palindrome (1598998951).

The spelling of 1144184540 in words is "one billion, one hundred forty-four million, one hundred eighty-four thousand, five hundred forty".