616782340 has 24 divisors (see below), whose sum is σ = 1300178880. Its totient is φ = 245772768.

The previous prime is 616782319. The next prime is 616782343. The reversal of 616782340 is 43287616.

It is a self number, because there is not a number n which added to its sum of digits gives 616782340.

It is not an unprimeable number, because it can be changed into a prime (616782343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53370 + ... + 63889.

It is an arithmetic number, because the mean of its divisors is an integer number (54174120).

Almost surely, 2^616782340 is an apocalyptic number.

It is an amenable number.

616782340 is an abundant number, since it is smaller than the sum of its proper divisors (683396540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616782340 is a wasteful number, since it uses less digits than its factorization.

616782340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117531 (or 117529 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 616782340 is about 24835.1029794523. The cubic root of 616782340 is about 851.2242290135.

The spelling of 616782340 in words is "six hundred sixteen million, seven hundred eighty-two thousand, three hundred forty".