616686048 has 240 divisors, whose sum is σ = 2028571776. Its totient is φ = 182165760.

The previous prime is 616686041. The next prime is 616686061. The reversal of 616686048 is 840686616.

It is a junction number, because it is equal to n+sod(n) for n = 616685994 and 616686012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616686041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1225765 + ... + 1226267.

Almost surely, 2^616686048 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 616686048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014285888).

616686048 is an abundant number, since it is smaller than the sum of its proper divisors (1411885728).

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

616686048 is a wasteful number, since it uses less digits than its factorization.

616686048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 616686048 is about 24833.1642768295. The cubic root of 616686048 is about 851.1799290262.

The spelling of 616686048 in words is "six hundred sixteen million, six hundred eighty-six thousand, forty-eight".