1152144330 has 64 divisors (see below), whose sum is σ = 2827008000. Its totient is φ = 300421440.

The previous prime is 1152144319. The next prime is 1152144347. The reversal of 1152144330 is 334412511.

It is a happy number.

It is a super-2 number, since 2×1152144330² = 2654873114302297800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1152144330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350595 + ... + 353865.

It is an arithmetic number, because the mean of its divisors is an integer number (44172000).

Almost surely, 2^1152144330 is an apocalyptic number.

1152144330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152144330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413504000).

1152144330 is an abundant number, since it is smaller than the sum of its proper divisors (1674863670).

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

1152144330 is a wasteful number, since it uses less digits than its factorization.

1152144330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1152144330 is about 33943.2516120657. The cubic root of 1152144330 is about 1048.3403349764.

Adding to 1152144330 its reverse (334412511), we get a palindrome (1486556841).

The spelling of 1152144330 in words is "one billion, one hundred fifty-two million, one hundred forty-four thousand, three hundred thirty".