1147916988 has 24 divisors (see below), whose sum is σ = 2976081360. Its totient is φ = 382638960.

The previous prime is 1147916969. The next prime is 1147916989. The reversal of 1147916988 is 8896197411.

1147916988 is a `hidden beast` number, since 1 + 1 + 479 + 169 + 8 + 8 = 666.

1147916988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1147916988² = 2635426822677984288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147916989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5314323 + ... + 5314538.

It is an arithmetic number, because the mean of its divisors is an integer number (124003390).

Almost surely, 2^1147916988 is an apocalyptic number.

1147916988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1147916988 is an abundant number, since it is smaller than the sum of its proper divisors (1828164372).

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

1147916988 is a wasteful number, since it uses less digits than its factorization.

1147916988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628874 (or 10628866 counting only the distinct ones).

The product of its digits is 870912, while the sum is 54.

The square root of 1147916988 is about 33880.9236591921. The cubic root of 1147916988 is about 1047.0566056702.

The spelling of 1147916988 in words is "one billion, one hundred forty-seven million, nine hundred sixteen thousand, nine hundred eighty-eight".