616244020 has 24 divisors (see below), whose sum is σ = 1478985984. Its totient is φ = 211283616.

The previous prime is 616244011. The next prime is 616244047. The reversal of 616244020 is 20442616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200732 + ... + 2201011.

It is an arithmetic number, because the mean of its divisors is an integer number (61624416).

Almost surely, 2^616244020 is an apocalyptic number.

It is an amenable number.

616244020 is an abundant number, since it is smaller than the sum of its proper divisors (862741964).

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

616244020 is a wasteful number, since it uses less digits than its factorization.

616244020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401759 (or 4401757 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 616244020 is about 24824.2627282262. The cubic root of 616244020 is about 850.9765109371.

Adding to 616244020 its reverse (20442616), we get a palindrome (636686636).

The spelling of 616244020 in words is "six hundred sixteen million, two hundred forty-four thousand, twenty".