1155804048 has 240 divisors, whose sum is σ = 4027420800. Its totient is φ = 301916160.

The previous prime is 1155804037. The next prime is 1155804059. The reversal of 1155804048 is 8404085511.

It is an interprime number because it is at equal distance from previous prime (1155804037) and next prime (1155804059).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 554368 + ... + 556448.

It is an arithmetic number, because the mean of its divisors is an integer number (16780920).

Almost surely, 2^1155804048 is an apocalyptic number.

1155804048 is a gapful number since it is divisible by the number (18) 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 1155804048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2013710400).

1155804048 is an abundant number, since it is smaller than the sum of its proper divisors (2871616752).

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

1155804048 is a wasteful number, since it uses less digits than its factorization.

1155804048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2141 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 1155804048 is about 33997.1182308148. The cubic root of 1155804048 is about 1049.4491586923.

Adding to 1155804048 its reverse (8404085511), we get a palindrome (9559889559).

The spelling of 1155804048 in words is "one billion, one hundred fifty-five million, eight hundred four thousand, forty-eight".