1149056988 has 24 divisors (see below), whose sum is σ = 2681682192. Its totient is φ = 382940544.

The previous prime is 1149056981. The next prime is 1149057029. The reversal of 1149056988 is 8896509411.

It is a self number, because there is not a number n which added to its sum of digits gives 1149056988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149056981) 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, 104656 + ... + 115112.

It is an arithmetic number, because the mean of its divisors is an integer number (111736758).

Almost surely, 2^1149056988 is an apocalyptic number.

It is an amenable number.

1149056988 is an abundant number, since it is smaller than the sum of its proper divisors (1532625204).

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

1149056988 is a wasteful number, since it uses less digits than its factorization.

1149056988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621 (or 19619 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The square root of 1149056988 is about 33897.7431107146. The cubic root of 1149056988 is about 1047.4031027379.

The spelling of 1149056988 in words is "one billion, one hundred forty-nine million, fifty-six thousand, nine hundred eighty-eight".