1170820830 has 32 divisors (see below), whose sum is σ = 2820134304. Its totient is φ = 311089536.

The previous prime is 1170820817. The next prime is 1170820853. The reversal of 1170820830 is 380280711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 62137 + ... + 78756.

It is an arithmetic number, because the mean of its divisors is an integer number (88129197).

Almost surely, 2^1170820830 is an apocalyptic number.

1170820830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1170820830 is an abundant number, since it is smaller than the sum of its proper divisors (1649313474).

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

1170820830 is a wasteful number, since it uses less digits than its factorization.

1170820830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141180.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1170820830 is about 34217.2592414997. The cubic root of 1170820830 is about 1053.9746047288.

The spelling of 1170820830 in words is "one billion, one hundred seventy million, eight hundred twenty thousand, eight hundred thirty".