616378580 has 48 divisors (see below), whose sum is σ = 1346526720. Its totient is φ = 236745600.

The previous prime is 616378577. The next prime is 616378589. The reversal of 616378580 is 85873616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616378589) 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, 77426 + ... + 85014.

It is an arithmetic number, because the mean of its divisors is an integer number (28052640).

Almost surely, 2^616378580 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 616378580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673263360).

616378580 is an abundant number, since it is smaller than the sum of its proper divisors (730148140).

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

616378580 is a wasteful number, since it uses less digits than its factorization.

616378580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760 (or 7758 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 616378580 is about 24826.9728319826. The cubic root of 616378580 is about 851.0384447718.

The spelling of 616378580 in words is "six hundred sixteen million, three hundred seventy-eight thousand, five hundred eighty".