20022834 has 32 divisors (see below), whose sum is σ = 45005184. Its totient is φ = 5892480.

The previous prime is 20022833. The next prime is 20022839. The reversal of 20022834 is 43822002.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022834.

It is not an unprimeable number, because it can be changed into a prime (20022833) 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, 3787 + ... + 7374.

It is an arithmetic number, because the mean of its divisors is an integer number (1406412).

Almost surely, 2^20022834 is an apocalyptic number.

20022834 is an abundant number, since it is smaller than the sum of its proper divisors (24982350).

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

20022834 is a wasteful number, since it uses less digits than its factorization.

20022834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20022834 is about 4474.6881455583. The cubic root of 20022834 is about 271.5450240577.

Adding to 20022834 its reverse (43822002), we get a palindrome (63844836).

The spelling of 20022834 in words is "twenty million, twenty-two thousand, eight hundred thirty-four".