20439110 has 8 divisors (see below), whose sum is σ = 36790416. Its totient is φ = 8175640.

The previous prime is 20439103. The next prime is 20439121. The reversal of 20439110 is 1193402.

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, 1021946 + ... + 1021965.

It is an arithmetic number, because the mean of its divisors is an integer number (4598802).

Almost surely, 2^20439110 is an apocalyptic number.

20439110 is a deficient number, since it is larger than the sum of its proper divisors (16351306).

20439110 is a wasteful number, since it uses less digits than its factorization.

20439110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043918.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20439110 is about 4520.9633929064. The cubic root of 20439110 is about 273.4139444307.

The spelling of 20439110 in words is "twenty million, four hundred thirty-nine thousand, one hundred ten".