1152020044 has 48 divisors (see below), whose sum is σ = 2408329728. Its totient is φ = 471449088.

The previous prime is 1152019987. The next prime is 1152020053. The reversal of 1152020044 is 4400202511.

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, 505692 + ... + 507964.

It is an arithmetic number, because the mean of its divisors is an integer number (50173536).

Almost surely, 2^1152020044 is an apocalyptic number.

1152020044 is a gapful number since it is divisible by the number (14) 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 1152020044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204164864).

1152020044 is an abundant number, since it is smaller than the sum of its proper divisors (1256309684).

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

1152020044 is a wasteful number, since it uses less digits than its factorization.

1152020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1152020044 is about 33941.4207716766. The cubic root of 1152020044 is about 1048.3026375257.

Adding to 1152020044 its reverse (4400202511), we get a palindrome (5552222555).

The spelling of 1152020044 in words is "one billion, one hundred fifty-two million, twenty thousand, forty-four".