616469620 has 48 divisors (see below), whose sum is σ = 1403614800. Its totient is φ = 226077696.

The previous prime is 616469593. The next prime is 616469639. The reversal of 616469620 is 26964616.

616469620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 59320804 + 557148816 = 7702^2 + 23604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30784 + ... + 46696.

It is an arithmetic number, because the mean of its divisors is an integer number (29241975).

Almost surely, 2^616469620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616469620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701807400).

616469620 is an abundant number, since it is smaller than the sum of its proper divisors (787145180).

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

616469620 is a wasteful number, since it uses less digits than its factorization.

616469620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16084 (or 16082 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 616469620 is about 24828.8062540268. The cubic root of 616469620 is about 851.0803425753.

The spelling of 616469620 in words is "six hundred sixteen million, four hundred sixty-nine thousand, six hundred twenty".