616549742 has 8 divisors (see below), whose sum is σ = 942274296. Its totient is φ = 302458312.

The previous prime is 616549741. The next prime is 616549757. The reversal of 616549742 is 247945616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 616549693 and 616549702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616549741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2908148 + ... + 2908359.

It is an arithmetic number, because the mean of its divisors is an integer number (117784287).

Almost surely, 2^616549742 is an apocalyptic number.

616549742 is a deficient number, since it is larger than the sum of its proper divisors (325724554).

616549742 is a wasteful number, since it uses less digits than its factorization.

616549742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816562.

The product of its digits is 362880, while the sum is 44.

The square root of 616549742 is about 24830.4196903717. The cubic root of 616549742 is about 851.1172123593.

The spelling of 616549742 in words is "six hundred sixteen million, five hundred forty-nine thousand, seven hundred forty-two".