20416069 has 4 divisors (see below), whose sum is σ = 20452896. Its totient is φ = 20379244.

The previous prime is 20416063. The next prime is 20416093. The reversal of 20416069 is 96061402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96061402 = 2 ⋅48030701.

It is a cyclic number.

It is not a de Polignac number, because 20416069 - 2³ = 20416061 is a prime.

It is a super-2 number, since 2×20416069² = 833631746825522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20416061) 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, 17569 + ... + 18694.

It is an arithmetic number, because the mean of its divisors is an integer number (5113224).

Almost surely, 2^20416069 is an apocalyptic number.

It is an amenable number.

20416069 is a deficient number, since it is larger than the sum of its proper divisors (36827).

20416069 is an equidigital number, since it uses as much as digits as its factorization.

20416069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36826.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20416069 is about 4518.4144342900. The cubic root of 20416069 is about 273.3111659926.

The spelling of 20416069 in words is "twenty million, four hundred sixteen thousand, sixty-nine".