616449236 has 12 divisors (see below), whose sum is σ = 1161769812. Its totient is φ = 284515008.

The previous prime is 616449199. The next prime is 616449241. The reversal of 616449236 is 632944616.

It can be written as a sum of positive squares in 2 ways, for example, as 214446736 + 402002500 = 14644^2 + 20050^2 .

It is a junction number, because it is equal to n+sod(n) for n = 616449193 and 616449202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5927345 + ... + 5927448.

It is an arithmetic number, because the mean of its divisors is an integer number (96814151).

Almost surely, 2^616449236 is an apocalyptic number.

It is an amenable number.

616449236 is a deficient number, since it is larger than the sum of its proper divisors (545320576).

616449236 is a wasteful number, since it uses less digits than its factorization.

616449236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854810 (or 11854808 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 616449236 is about 24828.3957596942. The cubic root of 616449236 is about 851.0709619492.

The spelling of 616449236 in words is "six hundred sixteen million, four hundred forty-nine thousand, two hundred thirty-six".