616465284 has 12 divisors (see below), whose sum is σ = 1438419024. Its totient is φ = 205488424.

The previous prime is 616465253. The next prime is 616465321. The reversal of 616465284 is 482564616.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25686042 + ... + 25686065.

It is an arithmetic number, because the mean of its divisors is an integer number (119868252).

Almost surely, 2^616465284 is an apocalyptic number.

It is an amenable number.

616465284 is an abundant number, since it is smaller than the sum of its proper divisors (821953740).

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

616465284 is a wasteful number, since it uses less digits than its factorization.

616465284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51372114 (or 51372112 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 616465284 is about 24828.7189359419. The cubic root of 616465284 is about 851.0783471847.

The spelling of 616465284 in words is "six hundred sixteen million, four hundred sixty-five thousand, two hundred eighty-four".