20450235 has 64 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 9123840.

The previous prime is 20450207. The next prime is 20450239. The reversal of 20450235 is 53205402.

It is not a de Polignac number, because 20450235 - 2⁷ = 20450107 is a prime.

It is a super-2 number, since 2×20450235² = 836424223110450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20450239) 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 63 ways as a sum of consecutive naturals, for example, 102666 + ... + 102864.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^20450235 is an apocalyptic number.

20450235 is a deficient number, since it is larger than the sum of its proper divisors (18256965).

20450235 is a wasteful number, since it uses less digits than its factorization.

20450235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20450235 is about 4522.1936048781. The cubic root of 20450235 is about 273.4635418027.

Adding to 20450235 its reverse (53205402), we get a palindrome (73655637).

The spelling of 20450235 in words is "twenty million, four hundred fifty thousand, two hundred thirty-five".