1205938272 has 144 divisors (see below), whose sum is σ = 3976874496. Its totient is φ = 313209600.

The previous prime is 1205938259. The next prime is 1205938273. The reversal of 1205938272 is 2728395021.

It is a self number, because there is not a number n which added to its sum of digits gives 1205938272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205938273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73897 + ... + 88727.

It is an arithmetic number, because the mean of its divisors is an integer number (27617184).

Almost surely, 2^1205938272 is an apocalyptic number.

1205938272 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 1205938272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988437248).

1205938272 is an abundant number, since it is smaller than the sum of its proper divisors (2770936224).

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

1205938272 is a wasteful number, since it uses less digits than its factorization.

1205938272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14873 (or 14854 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1205938272 is about 34726.6219491617. The cubic root of 1205938272 is about 1064.4085622636.

The spelling of 1205938272 in words is "one billion, two hundred five million, nine hundred thirty-eight thousand, two hundred seventy-two".