1155430806 has 32 divisors (see below), whose sum is σ = 2553182208. Its totient is φ = 346727040.

The previous prime is 1155430741. The next prime is 1155430817. The reversal of 1155430806 is 6080345511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243910 + ... + 248601.

It is an arithmetic number, because the mean of its divisors is an integer number (79786944).

Almost surely, 2^1155430806 is an apocalyptic number.

1155430806 is an abundant number, since it is smaller than the sum of its proper divisors (1397751402).

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

1155430806 is a wasteful number, since it uses less digits than its factorization.

1155430806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492556.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1155430806 is about 33991.6284693746. The cubic root of 1155430806 is about 1049.3361808697.

The spelling of 1155430806 in words is "one billion, one hundred fifty-five million, four hundred thirty thousand, eight hundred six".