20434084 has 48 divisors (see below), whose sum is σ = 41029632. Its totient is φ = 8820000.

The previous prime is 20434081. The next prime is 20434093. The reversal of 20434084 is 48043402.

20434084 = T₂₅₄ + T₂₅₅ + ... + T₅₁₇.

It is not an unprimeable number, because it can be changed into a prime (20434081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96739 + ... + 96949.

It is an arithmetic number, because the mean of its divisors is an integer number (854784).

Almost surely, 2^20434084 is an apocalyptic number.

It is an amenable number.

20434084 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20434084 is a wasteful number, since it uses less digits than its factorization.

20434084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 20434084 is about 4520.4075037545. The cubic root of 20434084 is about 273.3915316620.

Adding to 20434084 its reverse (48043402), we get a palindrome (68477486).

The spelling of 20434084 in words is "twenty million, four hundred thirty-four thousand, eighty-four".