616424688 has 80 divisors (see below), whose sum is σ = 1930233600. Its totient is φ = 186793920.

The previous prime is 616424687. The next prime is 616424707. The reversal of 616424688 is 886424616.

616424688 is a `hidden beast` number, since 616 + 4 + 24 + 6 + 8 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616424687) 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, 60108 + ... + 69611.

It is an arithmetic number, because the mean of its divisors is an integer number (24127920).

Almost surely, 2^616424688 is an apocalyptic number.

It is an amenable number.

616424688 is an abundant number, since it is smaller than the sum of its proper divisors (1313808912).

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

616424688 is a wasteful number, since it uses less digits than its factorization.

616424688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129747 (or 129735 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 616424688 is about 24827.9014014475. The cubic root of 616424688 is about 851.0596647944.

The spelling of 616424688 in words is "six hundred sixteen million, four hundred twenty-four thousand, six hundred eighty-eight".