1195915728 has 160 divisors (see below), whose sum is σ = 3901464576. Its totient is φ = 307574784.

The previous prime is 1195915687. The next prime is 1195915729. The reversal of 1195915728 is 8275195911.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195915729) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 126825 + ... + 135927.

Almost surely, 2^1195915728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1195915728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950732288).

1195915728 is an abundant number, since it is smaller than the sum of its proper divisors (2705548848).

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

1195915728 is a wasteful number, since it uses less digits than its factorization.

1195915728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161 (or 9155 counting only the distinct ones).

The product of its digits is 226800, while the sum is 48.

The square root of 1195915728 is about 34582.0145162193. The cubic root of 1195915728 is about 1061.4515914048.

The spelling of 1195915728 in words is "one billion, one hundred ninety-five million, nine hundred fifteen thousand, seven hundred twenty-eight".