616548140 has 48 divisors (see below), whose sum is σ = 1399924512. Its totient is φ = 226738176.

The previous prime is 616548133. The next prime is 616548169. The reversal of 616548140 is 41845616.

It is a self number, because there is not a number n which added to its sum of digits gives 616548140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62207 + ... + 71433.

It is an arithmetic number, because the mean of its divisors is an integer number (29165094).

Almost surely, 2^616548140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616548140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699962256).

616548140 is an abundant number, since it is smaller than the sum of its proper divisors (783376372).

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

616548140 is a wasteful number, since it uses less digits than its factorization.

616548140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506 (or 9504 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 616548140 is about 24830.3874315324. The cubic root of 616548140 is about 851.1164751974.

The spelling of 616548140 in words is "six hundred sixteen million, five hundred forty-eight thousand, one hundred forty".