616430490 has 128 divisors (see below), whose sum is σ = 1718841600. Its totient is φ = 140175360.

The previous prime is 616430483. The next prime is 616430497. The reversal of 616430490 is 94034616.

It is an interprime number because it is at equal distance from previous prime (616430483) and next prime (616430497).

It is not an unprimeable number, because it can be changed into a prime (616430497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 302796 + ... + 304824.

It is an arithmetic number, because the mean of its divisors is an integer number (13428450).

Almost surely, 2^616430490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616430490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859420800).

616430490 is an abundant number, since it is smaller than the sum of its proper divisors (1102411110).

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

616430490 is a wasteful number, since it uses less digits than its factorization.

616430490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 616430490 is about 24828.0182455225. The cubic root of 616430490 is about 851.0623349409.

The spelling of 616430490 in words is "six hundred sixteen million, four hundred thirty thousand, four hundred ninety".