1011918208 has 48 divisors (see below), whose sum is σ = 2345076900. Its totient is φ = 433676544.

The previous prime is 1011918197. The next prime is 1011918209. The reversal of 1011918208 is 8028191101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011918208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011918209) 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 5 ways as a sum of consecutive naturals, for example, 74398 + ... + 86941.

Almost surely, 2^1011918208 is an apocalyptic number.

It is an amenable number.

1011918208 is an abundant number, since it is smaller than the sum of its proper divisors (1333158692).

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

1011918208 is an equidigital number, since it uses as much as digits as its factorization.

1011918208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161367 (or 161348 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 1011918208 is about 31810.6618604518. The cubic root of 1011918208 is about 1003.9570570459.

The spelling of 1011918208 in words is "one billion, eleven million, nine hundred eighteen thousand, two hundred eight".