20001417 has 16 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 12848400.

The previous prime is 20001389. The next prime is 20001439. The reversal of 20001417 is 71410002.

It is not a de Polignac number, because 20001417 - 2⁸ = 20001161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20001396 and 20001405.

It is not an unprimeable number, because it can be changed into a prime (20001217) 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, 39834 + ... + 40332.

It is an arithmetic number, because the mean of its divisors is an integer number (1728000).

Almost surely, 2^20001417 is an apocalyptic number.

It is an amenable number.

20001417 is a deficient number, since it is larger than the sum of its proper divisors (7646583).

20001417 is a wasteful number, since it uses less digits than its factorization.

20001417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 20001417 is about 4472.2943776098. The cubic root of 20001417 is about 271.4481720577.

Adding to 20001417 its reverse (71410002), we get a palindrome (91411419).

The spelling of 20001417 in words is "twenty million, one thousand, four hundred seventeen".