616640414 has 16 divisors (see below), whose sum is σ = 996922080. Its totient is φ = 284371680.

The previous prime is 616640377. The next prime is 616640429. The reversal of 616640414 is 414046616.

616640414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25304 + ... + 43284.

It is an arithmetic number, because the mean of its divisors is an integer number (62307630).

Almost surely, 2^616640414 is an apocalyptic number.

616640414 is a deficient number, since it is larger than the sum of its proper divisors (380281666).

616640414 is a wasteful number, since it uses less digits than its factorization.

616640414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 616640414 is about 24832.2454482071. The cubic root of 616640414 is about 851.1589330899.

The spelling of 616640414 in words is "six hundred sixteen million, six hundred forty thousand, four hundred fourteen".