1230173280 has 144 divisors (see below), whose sum is σ = 4797715104. Its totient is φ = 281180160.

The previous prime is 1230173207. The next prime is 1230173309. The reversal of 1230173280 is 823710321.

1230173280 is a `hidden beast` number, since 12 + 301 + 73 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50941 + ... + 71100.

It is an arithmetic number, because the mean of its divisors is an integer number (33317466).

Almost surely, 2^1230173280 is an apocalyptic number.

1230173280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230173280 is an abundant number, since it is smaller than the sum of its proper divisors (3567541824).

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

1230173280 is a wasteful number, since it uses less digits than its factorization.

1230173280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122069 (or 122058 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1230173280 is about 35073.8261385894. The cubic root of 1230173280 is about 1071.4915815134.

The spelling of 1230173280 in words is "one billion, two hundred thirty million, one hundred seventy-three thousand, two hundred eighty".