20069385 has 16 divisors (see below), whose sum is σ = 36698496. Its totient is φ = 9174528.

The previous prime is 20069383. The next prime is 20069389. The reversal of 20069385 is 58396002.

It is a happy number.

It is not a de Polignac number, because 20069385 - 2¹ = 20069383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20069383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95464 + ... + 95673.

It is an arithmetic number, because the mean of its divisors is an integer number (2293656).

Almost surely, 2^20069385 is an apocalyptic number.

It is an amenable number.

20069385 is a deficient number, since it is larger than the sum of its proper divisors (16629111).

20069385 is a wasteful number, since it uses less digits than its factorization.

20069385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191152.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20069385 is about 4479.8867173177. The cubic root of 20069385 is about 271.7552991358.

The spelling of 20069385 in words is "twenty million, sixty-nine thousand, three hundred eighty-five".