1205384080 has 40 divisors (see below), whose sum is σ = 2831428152. Its totient is φ = 477179904.

The previous prime is 1205384071. The next prime is 1205384119. The reversal of 1205384080 is 804835021.

It can be written as a sum of positive squares in 4 ways, for example, as 218921616 + 986462464 = 14796^2 + 31408^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 69907 + ... + 85426.

Almost surely, 2^1205384080 is an apocalyptic number.

1205384080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205384080 is an abundant number, since it is smaller than the sum of its proper divisors (1626044072).

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

1205384080 is a wasteful number, since it uses less digits than its factorization.

1205384080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155443 (or 155437 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1205384080 is about 34718.6416784989. The cubic root of 1205384080 is about 1064.2454867265.

The spelling of 1205384080 in words is "one billion, two hundred five million, three hundred eighty-four thousand, eighty".