1117788949 has 16 divisors (see below), whose sum is σ = 1151176320. Its totient is φ = 1085002560.

The previous prime is 1117788929. The next prime is 1117788961. The reversal of 1117788949 is 9498877111.

It is a cyclic number.

It is not a de Polignac number, because 1117788949 - 2¹³ = 1117780757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117788949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117788929) by changing a digit.

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, 1823167 + ... + 1823779.

It is an arithmetic number, because the mean of its divisors is an integer number (71948520).

Almost surely, 2^1117788949 is an apocalyptic number.

It is an amenable number.

1117788949 is a deficient number, since it is larger than the sum of its proper divisors (33387371).

1117788949 is a wasteful number, since it uses less digits than its factorization.

1117788949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 1016064, while the sum is 55.

The square root of 1117788949 is about 33433.3508491147. The cubic root of 1117788949 is about 1037.8149850982.

The spelling of 1117788949 in words is "one billion, one hundred seventeen million, seven hundred eighty-eight thousand, nine hundred forty-nine".