616537422 has 48 divisors (see below), whose sum is σ = 1413360000. Its totient is φ = 193696272.

The previous prime is 616537373. The next prime is 616537451. The reversal of 616537422 is 224735616.

616537422 is a `hidden beast` number, since 616 + 5 + 37 + 4 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63529 + ... + 72587.

It is an arithmetic number, because the mean of its divisors is an integer number (29445000).

Almost surely, 2^616537422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616537422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706680000).

616537422 is an abundant number, since it is smaller than the sum of its proper divisors (796822578).

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

616537422 is a wasteful number, since it uses less digits than its factorization.

616537422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285 (or 9282 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 616537422 is about 24830.1716063341. The cubic root of 616537422 is about 851.1115432660. Note that the first 3 decimals are identical.

The spelling of 616537422 in words is "six hundred sixteen million, five hundred thirty-seven thousand, four hundred twenty-two".