109289990 has 8 divisors (see below), whose sum is σ = 196722000. Its totient is φ = 43715992.

The previous prime is 109289989. The next prime is 109290023. The reversal of 109289990 is 99982901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464490 + ... + 5464509.

It is an arithmetic number, because the mean of its divisors is an integer number (24590250).

Almost surely, 2^109289990 is an apocalyptic number.

109289990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109289990 is a deficient number, since it is larger than the sum of its proper divisors (87432010).

109289990 is a wasteful number, since it uses less digits than its factorization.

109289990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929006.

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 109289990 is about 10454.1852862861. The cubic root of 109289990 is about 478.1088639378.

The spelling of 109289990 in words is "one hundred nine million, two hundred eighty-nine thousand, nine hundred ninety".