20053018 has 32 divisors (see below), whose sum is σ = 33122880. Its totient is φ = 9072000.

The previous prime is 20053009. The next prime is 20053021. The reversal of 20053018 is 81035002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20052986 and 20053004.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 94933 + ... + 95143.

It is an arithmetic number, because the mean of its divisors is an integer number (1035090).

Almost surely, 2^20053018 is an apocalyptic number.

20053018 is a deficient number, since it is larger than the sum of its proper divisors (13069862).

20053018 is a wasteful number, since it uses less digits than its factorization.

20053018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20053018 is about 4478.0596244356. The cubic root of 20053018 is about 271.6814050159.

The spelling of 20053018 in words is "twenty million, fifty-three thousand, eighteen".