118989290 has 32 divisors (see below), whose sum is σ = 259179264. Its totient is φ = 38396160.

The previous prime is 118989287. The next prime is 118989317. The reversal of 118989290 is 92989811.

It is a super-2 number, since 2×118989290² = 28316902269408200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48806 + ... + 51185.

It is an arithmetic number, because the mean of its divisors is an integer number (8099352).

Almost surely, 2^118989290 is an apocalyptic number.

118989290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118989290 is an abundant number, since it is smaller than the sum of its proper divisors (140189974).

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

118989290 is a wasteful number, since it uses less digits than its factorization.

118989290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100022.

The product of its (nonzero) digits is 93312, while the sum is 47.

The square root of 118989290 is about 10908.2212115450. The cubic root of 118989290 is about 491.8537169490.

The spelling of 118989290 in words is "one hundred eighteen million, nine hundred eighty-nine thousand, two hundred ninety".