1177980384 has 144 divisors (see below), whose sum is σ = 3619728000. Its totient is φ = 334446336.

The previous prime is 1177980367. The next prime is 1177980413. The reversal of 1177980384 is 4830897711.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 841317 + ... + 842715.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^1177980384 is an apocalyptic number.

1177980384 is a gapful number since it is divisible by the number (14) 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 1177980384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809864000).

1177980384 is an abundant number, since it is smaller than the sum of its proper divisors (2441747616).

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

1177980384 is a wasteful number, since it uses less digits than its factorization.

1177980384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1177980384 is about 34321.7188380769. The cubic root of 1177980384 is about 1056.1185874628.

The spelling of 1177980384 in words is "one billion, one hundred seventy-seven million, nine hundred eighty thousand, three hundred eighty-four".