1153423044 has 96 divisors (see below), whose sum is σ = 3284736000. Its totient is φ = 348388128.

The previous prime is 1153422971. The next prime is 1153423049. The reversal of 1153423044 is 4403243511.

It is a happy number.

1153423044 is a `hidden beast` number, since 1 + 15 + 342 + 304 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1153422999 and 1153423017.

It is not an unprimeable number, because it can be changed into a prime (1153423049) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 34977 + ... + 59415.

It is an arithmetic number, because the mean of its divisors is an integer number (34216000).

Almost surely, 2^1153423044 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 1153423044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642368000).

1153423044 is an abundant number, since it is smaller than the sum of its proper divisors (2131312956).

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

1153423044 is a wasteful number, since it uses less digits than its factorization.

1153423044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24494 (or 24486 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1153423044 is about 33962.0824449856. The cubic root of 1153423044 is about 1048.7280270977.

Adding to 1153423044 its reverse (4403243511), we get a palindrome (5556666555).

The spelling of 1153423044 in words is "one billion, one hundred fifty-three million, four hundred twenty-three thousand, forty-four".