1118306649 has 16 divisors (see below), whose sum is σ = 1503774720. Its totient is φ = 739211280.

The previous prime is 1118306641. The next prime is 1118306663. The reversal of 1118306649 is 9466038111.

It is not a de Polignac number, because 1118306649 - 2³ = 1118306641 is a prime.

It is a super-2 number, since 2×1118306649² = 2501219522395218402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1118306641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213342 + ... + 218520.

It is an arithmetic number, because the mean of its divisors is an integer number (93985920).

Almost surely, 2^1118306649 is an apocalyptic number.

It is an amenable number.

1118306649 is a deficient number, since it is larger than the sum of its proper divisors (385468071).

1118306649 is a wasteful number, since it uses less digits than its factorization.

1118306649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1118306649 is about 33441.0922219954. The cubic root of 1118306649 is about 1037.9751804832.

The spelling of 1118306649 in words is "one billion, one hundred eighteen million, three hundred six thousand, six hundred forty-nine".