20117374 has 8 divisors (see below), whose sum is σ = 30539880. Its totient is φ = 9937416.

The previous prime is 20117359. The next prime is 20117401. The reversal of 20117374 is 47371102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60429 + ... + 60760.

It is an arithmetic number, because the mean of its divisors is an integer number (3817485).

Almost surely, 2^20117374 is an apocalyptic number.

20117374 is a deficient number, since it is larger than the sum of its proper divisors (10422506).

20117374 is a wasteful number, since it uses less digits than its factorization.

20117374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121274.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 20117374 is about 4485.2395699672. The cubic root of 20117374 is about 271.9717296887.

Adding to 20117374 its reverse (47371102), we get a palindrome (67488476).

The spelling of 20117374 in words is "twenty million, one hundred seventeen thousand, three hundred seventy-four".