1197728688 has 180 divisors, whose sum is σ = 3544717320. Its totient is φ = 348281856.

The previous prime is 1197728633. The next prime is 1197728729. The reversal of 1197728688 is 8868277911.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2928228 + ... + 2928636.

It is an arithmetic number, because the mean of its divisors is an integer number (19692874).

Almost surely, 2^1197728688 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 1197728688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1772358660).

1197728688 is an abundant number, since it is smaller than the sum of its proper divisors (2346988632).

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

1197728688 is a wasteful number, since it uses less digits than its factorization.

1197728688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 446 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 57.

The square root of 1197728688 is about 34608.2170589587. The cubic root of 1197728688 is about 1061.9876931909.

The spelling of 1197728688 in words is "one billion, one hundred ninety-seven million, seven hundred twenty-eight thousand, six hundred eighty-eight".