20047110 has 32 divisors (see below), whose sum is σ = 48356352. Its totient is φ = 5318880.

The previous prime is 20047037. The next prime is 20047121. The reversal of 20047110 is 1174002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20047110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4747 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (1511136).

Almost surely, 2^20047110 is an apocalyptic number.

20047110 is an abundant number, since it is smaller than the sum of its proper divisors (28309242).

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

20047110 is a wasteful number, since it uses less digits than its factorization.

20047110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 20047110 is about 4477.3999151293. The cubic root of 20047110 is about 271.6547215611.

The spelling of 20047110 in words is "twenty million, forty-seven thousand, one hundred ten".