20065407 has 8 divisors (see below), whose sum is σ = 27917184. Its totient is φ = 12795288.

The previous prime is 20065399. The next prime is 20065417. The reversal of 20065407 is 70456002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20065407 - 2³ = 20065399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20065417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145333 + ... + 145470.

It is an arithmetic number, because the mean of its divisors is an integer number (3489648).

Almost surely, 2^20065407 is an apocalyptic number.

20065407 is a deficient number, since it is larger than the sum of its proper divisors (7851777).

20065407 is a wasteful number, since it uses less digits than its factorization.

20065407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290829.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20065407 is about 4479.4427108738. The cubic root of 20065407 is about 271.7373428637.

The spelling of 20065407 in words is "twenty million, sixty-five thousand, four hundred seven".