20148417 has 48 divisors (see below), whose sum is σ = 33696000. Its totient is φ = 11515392.

The previous prime is 20148413. The next prime is 20148431. The reversal of 20148417 is 71484102.

20148417 is a `hidden beast` number, since 201 + 48 + 417 = 666.

It is not a de Polignac number, because 20148417 - 2² = 20148413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20148413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84184 + ... + 84422.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

Almost surely, 2^20148417 is an apocalyptic number.

It is an amenable number.

20148417 is a deficient number, since it is larger than the sum of its proper divisors (13547583).

20148417 is a wasteful number, since it uses less digits than its factorization.

20148417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 20148417 is about 4488.6988092319. The cubic root of 20148417 is about 272.1115504466. Note that the first 3 decimals are identical.

The spelling of 20148417 in words is "twenty million, one hundred forty-eight thousand, four hundred seventeen".