1155880704 has 144 divisors (see below), whose sum is σ = 3412531584. Its totient is φ = 344371200.

The previous prime is 1155880699. The next prime is 1155880723. The reversal of 1155880704 is 4070885511.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 514207 + ... + 516449.

It is an arithmetic number, because the mean of its divisors is an integer number (23698136).

Almost surely, 2^1155880704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155880704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706265792).

1155880704 is an abundant number, since it is smaller than the sum of its proper divisors (2256650880).

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

1155880704 is a wasteful number, since it uses less digits than its factorization.

1155880704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 1155880704 is about 33998.2456017954. The cubic root of 1155880704 is about 1049.4723589330.

The spelling of 1155880704 in words is "one billion, one hundred fifty-five million, eight hundred eighty thousand, seven hundred four".