616022020 has 12 divisors (see below), whose sum is σ = 1293646284. Its totient is φ = 246408800.

The previous prime is 616022003. The next prime is 616022023. The reversal of 616022020 is 20220616.

It can be written as a sum of positive squares in 2 ways, for example, as 143568324 + 472453696 = 11982^2 + 21736^2 .

It is not an unprimeable number, because it can be changed into a prime (616022023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15400531 + ... + 15400570.

It is an arithmetic number, because the mean of its divisors is an integer number (107803857).

Almost surely, 2^616022020 is an apocalyptic number.

It is an amenable number.

616022020 is an abundant number, since it is smaller than the sum of its proper divisors (677624264).

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

616022020 is a wasteful number, since it uses less digits than its factorization.

616022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30801110 (or 30801108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 616022020 is about 24819.7908935591. The cubic root of 616022020 is about 850.8743114461.

Adding to 616022020 its reverse (20220616), we get a palindrome (636242636).

The spelling of 616022020 in words is "six hundred sixteen million, twenty-two thousand, twenty".