20196417 has 16 divisors (see below), whose sum is σ = 27666432. Its totient is φ = 13098960.

The previous prime is 20196409. The next prime is 20196427. The reversal of 20196417 is 71469102.

It is a happy number.

It is not a de Polignac number, because 20196417 - 2³ = 20196409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20196427) 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, 31692 + ... + 32322.

It is an arithmetic number, because the mean of its divisors is an integer number (1729152).

Almost surely, 2^20196417 is an apocalyptic number.

It is an amenable number.

20196417 is a deficient number, since it is larger than the sum of its proper divisors (7470015).

20196417 is a wasteful number, since it uses less digits than its factorization.

20196417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 20196417 is about 4494.0423896532. The cubic root of 20196417 is about 272.3274647789.

The spelling of 20196417 in words is "twenty million, one hundred ninety-six thousand, four hundred seventeen".