20115834 has 8 divisors (see below), whose sum is σ = 40231680. Its totient is φ = 6705276.

The previous prime is 20115833. The next prime is 20115839. The reversal of 20115834 is 43851102.

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

20115834 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20115833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676314 + ... + 1676325.

It is an arithmetic number, because the mean of its divisors is an integer number (5028960).

Almost surely, 2^20115834 is an apocalyptic number.

20115834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20115834 is a wasteful number, since it uses less digits than its factorization.

20115834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352644.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20115834 is about 4485.0678924627. The cubic root of 20115834 is about 271.9647896320.

Adding to 20115834 its reverse (43851102), we get a palindrome (63966936).

The spelling of 20115834 in words is "twenty million, one hundred fifteen thousand, eight hundred thirty-four".