20417073 has 16 divisors (see below), whose sum is σ = 28286400. Its totient is φ = 13083840.

The previous prime is 20417071. The next prime is 20417083. The reversal of 20417073 is 37071402.

It is not a de Polignac number, because 20417073 - 2¹ = 20417071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20417071) 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, 28443 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (1767900).

Almost surely, 2^20417073 is an apocalyptic number.

It is an amenable number.

20417073 is a deficient number, since it is larger than the sum of its proper divisors (7869327).

20417073 is a wasteful number, since it uses less digits than its factorization.

20417073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20417073 is about 4518.5255338440. The cubic root of 20417073 is about 273.3156461223.

Adding to 20417073 its reverse (37071402), we get a palindrome (57488475).

The spelling of 20417073 in words is "twenty million, four hundred seventeen thousand, seventy-three".