1610228520 has 48 divisors (see below), whose sum is σ = 5233243860. Its totient is φ = 429394176.

The previous prime is 1610228519. The next prime is 1610228527. The reversal of 1610228520 is 258220161.

It is a happy number.

1610228520 is a `hidden beast` number, since 1 + 610 + 2 + 28 + 5 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1601120196 + 9108324 = 40014^2 + 3018^2 .

It is not an unprimeable number, because it can be changed into a prime (1610228527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2236069 + ... + 2236788.

Almost surely, 2^1610228520 is an apocalyptic number.

1610228520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1610228520 is an abundant number, since it is smaller than the sum of its proper divisors (3623015340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1610228520 is a wasteful number, since it uses less digits than its factorization.

1610228520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472874 (or 4472867 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1610228520 is about 40127.6528095028. The cubic root of 1610228520 is about 1172.0941674774.

Adding to 1610228520 its reverse (258220161), we get a palindrome (1868448681).

The spelling of 1610228520 in words is "one billion, six hundred ten million, two hundred twenty-eight thousand, five hundred twenty".