229618485 has 24 divisors (see below), whose sum is σ = 408765240. Its totient is φ = 119152512.

The previous prime is 229618483. The next prime is 229618489. The reversal of 229618485 is 584816922.

229618485 is a `hidden beast` number, since 2 + 29 + 618 + 4 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38266596 + 191351889 = 6186^2 + 13833^2 .

It is not a de Polignac number, because 229618485 - 2¹ = 229618483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 229618485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229618483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67290 + ... + 70619.

It is an arithmetic number, because the mean of its divisors is an integer number (17031885).

Almost surely, 2^229618485 is an apocalyptic number.

It is an amenable number.

229618485 is a deficient number, since it is larger than the sum of its proper divisors (179146755).

229618485 is a wasteful number, since it uses less digits than its factorization.

229618485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137957 (or 137954 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 229618485 is about 15153.1674906602. The cubic root of 229618485 is about 612.3536098851.

The spelling of 229618485 in words is "two hundred twenty-nine million, six hundred eighteen thousand, four hundred eighty-five".