20264235 has 16 divisors (see below), whose sum is σ = 33469440. Its totient is φ = 10458720.

The previous prime is 20264227. The next prime is 20264249. The reversal of 20264235 is 53246202.

20264235 = 85² + 86² + ... + 394².

It is not a de Polignac number, because 20264235 - 2³ = 20264227 is a prime.

It is an unprimeable number.

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, 21325 + ... + 22254.

It is an arithmetic number, because the mean of its divisors is an integer number (2091840).

Almost surely, 2^20264235 is an apocalyptic number.

20264235 is a deficient number, since it is larger than the sum of its proper divisors (13205205).

20264235 is a wasteful number, since it uses less digits than its factorization.

20264235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43618.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20264235 is about 4501.5813888011. The cubic root of 20264235 is about 272.6319423888.

The spelling of 20264235 in words is "twenty million, two hundred sixty-four thousand, two hundred thirty-five".