616356420 has 96 divisors (see below), whose sum is σ = 1850688000. Its totient is φ = 152715264.

The previous prime is 616356413. The next prime is 616356479. The reversal of 616356420 is 24653616.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76756 + ... + 84404.

It is an arithmetic number, because the mean of its divisors is an integer number (19278000).

Almost surely, 2^616356420 is an apocalyptic number.

616356420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616356420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925344000).

616356420 is an abundant number, since it is smaller than the sum of its proper divisors (1234331580).

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

616356420 is a wasteful number, since it uses less digits than its factorization.

616356420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757 (or 7755 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 616356420 is about 24826.5265391677. The cubic root of 616356420 is about 851.0282458245.

The spelling of 616356420 in words is "six hundred sixteen million, three hundred fifty-six thousand, four hundred twenty".