20158064 has 20 divisors (see below), whose sum is σ = 39208800. Its totient is φ = 10039680.

The previous prime is 20158063. The next prime is 20158067. The reversal of 20158064 is 46085102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20158063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012 + ... + 6660.

It is an arithmetic number, because the mean of its divisors is an integer number (1960440).

Almost surely, 2^20158064 is an apocalyptic number.

It is an amenable number.

20158064 is a deficient number, since it is larger than the sum of its proper divisors (19050736).

20158064 is a wasteful number, since it uses less digits than its factorization.

20158064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928 (or 4922 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20158064 is about 4489.7732682174. The cubic root of 20158064 is about 272.1549722413.

The spelling of 20158064 in words is "twenty million, one hundred fifty-eight thousand, sixty-four".