1118623906 has 32 divisors (see below), whose sum is σ = 1777749120. Its totient is φ = 526855296.

The previous prime is 1118623867. The next prime is 1118623927. The reversal of 1118623906 is 6093268111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875340 + ... + 876616.

It is an arithmetic number, because the mean of its divisors is an integer number (55554660).

Almost surely, 2^1118623906 is an apocalyptic number.

1118623906 is a deficient number, since it is larger than the sum of its proper divisors (659125214).

1118623906 is a wasteful number, since it uses less digits than its factorization.

1118623906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1118623906 is about 33445.8354059216. The cubic root of 1118623906 is about 1038.0733270147.

The spelling of 1118623906 in words is "one billion, one hundred eighteen million, six hundred twenty-three thousand, nine hundred six".