20146434 has 32 divisors (see below), whose sum is σ = 50236416. Its totient is φ = 5232720.

The previous prime is 20146433. The next prime is 20146453. The reversal of 20146434 is 43464102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20146433) 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, 21342 + ... + 22265.

It is an arithmetic number, because the mean of its divisors is an integer number (1569888).

Almost surely, 2^20146434 is an apocalyptic number.

20146434 is an abundant number, since it is smaller than the sum of its proper divisors (30089982).

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

20146434 is a wasteful number, since it uses less digits than its factorization.

20146434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43630.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20146434 is about 4488.4779157305. The cubic root of 20146434 is about 272.1026231132.

It can be divided in two parts, 2014 and 6434, that added together give a palindrome (8448).

The spelling of 20146434 in words is "twenty million, one hundred forty-six thousand, four hundred thirty-four".