20276069 has 16 divisors (see below), whose sum is σ = 22680000. Its totient is φ = 17973120.

The previous prime is 20276063. The next prime is 20276083. The reversal of 20276069 is 96067202.

It is not a de Polignac number, because 20276069 - 2²⁴ = 3498853 is a prime.

It is a super-2 number, since 2×20276069² = 822237948185522, 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 (20276063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136007 + ... + 136155.

It is an arithmetic number, because the mean of its divisors is an integer number (1417500).

Almost surely, 2^20276069 is an apocalyptic number.

It is an amenable number.

20276069 is a deficient number, since it is larger than the sum of its proper divisors (2403931).

20276069 is a wasteful number, since it uses less digits than its factorization.

20276069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 20276069 is about 4502.8956239291. The cubic root of 20276069 is about 272.6850030079.

The spelling of 20276069 in words is "twenty million, two hundred seventy-six thousand, sixty-nine".