616312420 has 24 divisors (see below), whose sum is σ = 1296086400. Its totient is φ = 246176352.

The previous prime is 616312409. The next prime is 616312423. The reversal of 616312420 is 24213616.

It is not an unprimeable number, because it can be changed into a prime (616312423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7050 + ... + 35809.

It is an arithmetic number, because the mean of its divisors is an integer number (54003600).

Almost surely, 2^616312420 is an apocalyptic number.

It is an amenable number.

616312420 is an abundant number, since it is smaller than the sum of its proper divisors (679773980).

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

616312420 is a wasteful number, since it uses less digits than its factorization.

616312420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43587 (or 43585 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 616312420 is about 24825.6403744193. The cubic root of 616312420 is about 851.0079944826.

The spelling of 616312420 in words is "six hundred sixteen million, three hundred twelve thousand, four hundred twenty".