1205086272 has 84 divisors (see below), whose sum is σ = 3452682960. Its totient is φ = 370785792.

The previous prime is 1205086243. The next prime is 1205086273. The reversal of 1205086272 is 2726805021.

It is not an unprimeable number, because it can be changed into a prime (1205086273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13879 + ... + 51017.

Almost surely, 2^1205086272 is an apocalyptic number.

1205086272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1205086272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726341480).

1205086272 is an abundant number, since it is smaller than the sum of its proper divisors (2247596688).

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

1205086272 is a wasteful number, since it uses less digits than its factorization.

1205086272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37180 (or 37157 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1205086272 is about 34714.3525360909. The cubic root of 1205086272 is about 1064.1578336345.

The spelling of 1205086272 in words is "one billion, two hundred five million, eighty-six thousand, two hundred seventy-two".