20484835 has 16 divisors (see below), whose sum is σ = 29316096. Its totient is φ = 13435488.

The previous prime is 20484833. The next prime is 20484851. The reversal of 20484835 is 53848402.

It is a cyclic number.

It is not a de Polignac number, because 20484835 - 2¹ = 20484833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20484835.

It is not an unprimeable number, because it can be changed into a prime (20484833) 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, 11919 + ... + 13528.

It is an arithmetic number, because the mean of its divisors is an integer number (1832256).

Almost surely, 2^20484835 is an apocalyptic number.

20484835 is a deficient number, since it is larger than the sum of its proper divisors (8831261).

20484835 is a wasteful number, since it uses less digits than its factorization.

20484835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25482.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 20484835 is about 4526.0175651449. The cubic root of 20484835 is about 273.6176803307.

The spelling of 20484835 in words is "twenty million, four hundred eighty-four thousand, eight hundred thirty-five".