1155780632 has 32 divisors (see below), whose sum is σ = 2300659200. Its totient is φ = 542452224.

The previous prime is 1155780623. The next prime is 1155780667. The reversal of 1155780632 is 2360875511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40994 + ... + 63182.

It is an arithmetic number, because the mean of its divisors is an integer number (71895600).

Almost surely, 2^1155780632 is an apocalyptic number.

It is an amenable number.

1155780632 is a deficient number, since it is larger than the sum of its proper divisors (1144878568).

1155780632 is a wasteful number, since it uses less digits than its factorization.

1155780632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22595 (or 22591 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1155780632 is about 33996.7738469402. The cubic root of 1155780632 is about 1049.4420715430.

The spelling of 1155780632 in words is "one billion, one hundred fifty-five million, seven hundred eighty thousand, six hundred thirty-two".