1155504330 has 24 divisors (see below), whose sum is σ = 3004311492. Its totient is φ = 308134464.

The previous prime is 1155504319. The next prime is 1155504341. The reversal of 1155504330 is 334055511.

1155504330 is a `hidden beast` number, since 1 + 155 + 504 + 3 + 3 + 0 = 666.

1155504330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1155504319) and next prime (1155504341).

It can be written as a sum of positive squares in 2 ways, for example, as 1062825201 + 92679129 = 32601^2 + 9627^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1155504294 and 1155504303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6419379 + ... + 6419558.

Almost surely, 2^1155504330 is an apocalyptic number.

1155504330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155504330 is an abundant number, since it is smaller than the sum of its proper divisors (1848807162).

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

1155504330 is a wasteful number, since it uses less digits than its factorization.

1155504330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838950 (or 12838947 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1155504330 is about 33992.7099537533. The cubic root of 1155504330 is about 1049.3584380101.

Adding to 1155504330 its reverse (334055511), we get a palindrome (1489559841).

The spelling of 1155504330 in words is "one billion, one hundred fifty-five million, five hundred four thousand, three hundred thirty".