1230884809 has 32 divisors (see below), whose sum is σ = 1659110400. Its totient is φ = 884053440.

The previous prime is 1230884801. The next prime is 1230884827. The reversal of 1230884809 is 9084880321.

It is a cyclic number.

It is not a de Polignac number, because 1230884809 - 2³ = 1230884801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230884801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42762 + ... + 65500.

It is an arithmetic number, because the mean of its divisors is an integer number (51847200).

Almost surely, 2^1230884809 is an apocalyptic number.

1230884809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1230884809 is a deficient number, since it is larger than the sum of its proper divisors (428225591).

1230884809 is a wasteful number, since it uses less digits than its factorization.

1230884809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22813.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1230884809 is about 35083.9679768409. The cubic root of 1230884809 is about 1071.6981243378.

The spelling of 1230884809 in words is "one billion, two hundred thirty million, eight hundred eighty-four thousand, eight hundred nine".