616189628 has 12 divisors (see below), whose sum is σ = 1096609080. Its totient is φ = 302872752.

The previous prime is 616189621. The next prime is 616189643. The reversal of 616189628 is 826981616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616189621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305251 + ... + 1305722.

It is an arithmetic number, because the mean of its divisors is an integer number (91384090).

Almost surely, 2^616189628 is an apocalyptic number.

It is an amenable number.

616189628 is a deficient number, since it is larger than the sum of its proper divisors (480419452).

616189628 is a wasteful number, since it uses less digits than its factorization.

616189628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611036 (or 2611034 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 616189628 is about 24823.1671629549. The cubic root of 616189628 is about 850.9514734115.

The spelling of 616189628 in words is "six hundred sixteen million, one hundred eighty-nine thousand, six hundred twenty-eight".