1155441264 has 40 divisors (see below), whose sum is σ = 3029448960. Its totient is φ = 379397568.

The previous prime is 1155441263. The next prime is 1155441277. The reversal of 1155441264 is 4621445511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155441263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176424 + ... + 182855.

It is an arithmetic number, because the mean of its divisors is an integer number (75736224).

Almost surely, 2^1155441264 is an apocalyptic number.

It is an amenable number.

1155441264 is an abundant number, since it is smaller than the sum of its proper divisors (1874007696).

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

1155441264 is a wasteful number, since it uses less digits than its factorization.

1155441264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359357 (or 359351 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 1155441264 is about 33991.7823010209. The cubic root of 1155441264 is about 1049.3393467667.

Adding to 1155441264 its reverse (4621445511), we get a palindrome (5776886775).

The spelling of 1155441264 in words is "one billion, one hundred fifty-five million, four hundred forty-one thousand, two hundred sixty-four".