20142834 has 32 divisors (see below), whose sum is σ = 41684544. Its totient is φ = 6484800.

The previous prime is 20142833. The next prime is 20142847. The reversal of 20142834 is 43824102.

It is not an unprimeable number, because it can be changed into a prime (20142833) 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, 25672 + ... + 26444.

It is an arithmetic number, because the mean of its divisors is an integer number (1302642).

Almost surely, 2^20142834 is an apocalyptic number.

20142834 is an abundant number, since it is smaller than the sum of its proper divisors (21541710).

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

20142834 is a wasteful number, since it uses less digits than its factorization.

20142834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20142834 is about 4488.0768709994. The cubic root of 20142834 is about 272.0864146567.

Adding to 20142834 its reverse (43824102), we get a palindrome (63966936).

The spelling of 20142834 in words is "twenty million, one hundred forty-two thousand, eight hundred thirty-four".