20069418 has 32 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 6141440.

The previous prime is 20069417. The next prime is 20069437. The reversal of 20069418 is 81496002.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20069417) by changing a digit.

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, 1783 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^20069418 is an apocalyptic number.

20069418 is an abundant number, since it is smaller than the sum of its proper divisors (23476182).

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

20069418 is a wasteful number, since it uses less digits than its factorization.

20069418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20069418 is about 4479.8904004451. The cubic root of 20069418 is about 271.7554480844.

The spelling of 20069418 in words is "twenty million, sixty-nine thousand, four hundred eighteen".