118566490 has 16 divisors (see below), whose sum is σ = 243908352. Its totient is φ = 40651344.

The previous prime is 118566467. The next prime is 118566491. The reversal of 118566490 is 94665811.

It is not an unprimeable number, because it can be changed into a prime (118566491) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 846834 + ... + 846973.

It is an arithmetic number, because the mean of its divisors is an integer number (15244272).

Almost surely, 2^118566490 is an apocalyptic number.

118566490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118566490 is an abundant number, since it is smaller than the sum of its proper divisors (125341862).

118566490 is a wasteful number, since it uses less digits than its factorization.

118566490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693821.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 118566490 is about 10888.8240871088. The cubic root of 118566490 is about 491.2704640475.

The spelling of 118566490 in words is "one hundred eighteen million, five hundred sixty-six thousand, four hundred ninety".