616490019 has 12 divisors (see below), whose sum is σ = 895820016. Its totient is φ = 408531312.

The previous prime is 616489987. The next prime is 616490029. The reversal of 616490019 is 910094616.

616490019 is a `hidden beast` number, since 6 + 1 + 649 + 0 + 0 + 1 + 9 = 666.

616490019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616490019 - 2⁵ = 616489987 is a prime.

It is a super-2 number, since 2×616490019² = 760119887053240722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (616490029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203584 + ... + 206589.

It is an arithmetic number, because the mean of its divisors is an integer number (74651668).

Almost surely, 2^616490019 is an apocalyptic number.

616490019 is a deficient number, since it is larger than the sum of its proper divisors (279329997).

616490019 is a wasteful number, since it uses less digits than its factorization.

616490019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410346 (or 410343 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 616490019 is about 24829.2170436363. The cubic root of 616490019 is about 851.0897298972.

The spelling of 616490019 in words is "six hundred sixteen million, four hundred ninety thousand, nineteen".