20469795 has 16 divisors (see below), whose sum is σ = 33881760. Its totient is φ = 10540544.

The previous prime is 20469791. The next prime is 20469809. The reversal of 20469795 is 59796402.

It is a cyclic number.

It is not a de Polignac number, because 20469795 - 2² = 20469791 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20469791) 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, 23094 + ... + 23963.

It is an arithmetic number, because the mean of its divisors is an integer number (2117610).

Almost surely, 2^20469795 is an apocalyptic number.

20469795 is a deficient number, since it is larger than the sum of its proper divisors (13411965).

20469795 is a wasteful number, since it uses less digits than its factorization.

20469795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47094.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 20469795 is about 4524.3557552429. The cubic root of 20469795 is about 273.5507004168.

The spelling of 20469795 in words is "twenty million, four hundred sixty-nine thousand, seven hundred ninety-five".