1187301648 has 80 divisors (see below), whose sum is σ = 3314232320. Its totient is φ = 364096512.

The previous prime is 1187301629. The next prime is 1187301691. The reversal of 1187301648 is 8461037811.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 192273 + ... + 198351.

It is an arithmetic number, because the mean of its divisors is an integer number (41427904).

Almost surely, 2^1187301648 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 1187301648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657116160).

1187301648 is an abundant number, since it is smaller than the sum of its proper divisors (2126930672).

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

1187301648 is a wasteful number, since it uses less digits than its factorization.

1187301648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416 (or 6410 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1187301648 is about 34457.2437667321. The cubic root of 1187301648 is about 1058.8969324944.

The spelling of 1187301648 in words is "one billion, one hundred eighty-seven million, three hundred one thousand, six hundred forty-eight".