20502034 has 16 divisors (see below), whose sum is σ = 37214208. Its totient is φ = 8269632.

The previous prime is 20502023. The next prime is 20502049. The reversal of 20502034 is 43020502.

20502034 = 210² + 211² + ... + 413².

It is a junction number, because it is equal to n+sod(n) for n = 20501999 and 20502017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42834 + ... + 43309.

It is an arithmetic number, because the mean of its divisors is an integer number (2325888).

Almost surely, 2^20502034 is an apocalyptic number.

20502034 is a deficient number, since it is larger than the sum of its proper divisors (16712174).

20502034 is a wasteful number, since it uses less digits than its factorization.

20502034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86169.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20502034 is about 4527.9171812214. The cubic root of 20502034 is about 273.6942350774.

Adding to 20502034 its reverse (43020502), we get a palindrome (63522536).

The spelling of 20502034 in words is "twenty million, five hundred two thousand, thirty-four".