616128 has 28 divisors (see below), whose sum is σ = 1630680. Its totient is φ = 205312.

The previous prime is 616117. The next prime is 616129. The reversal of 616128 is 821616.

It is a super-2 number, since 2×616128² = 759227424768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 616098 and 616107.

It is not an unprimeable number, because it can be changed into a prime (616129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413 + ... + 1796.

2⁶¹⁶¹²⁸ is an apocalyptic number.

It is an amenable number.

616128 is an abundant number, since it is smaller than the sum of its proper divisors (1014552).

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

616128 is a wasteful number, since it uses less digits than its factorization.

616128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224 (or 3214 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 616128 is about 784.9382141290. The cubic root of 616128 is about 85.0923103256.

The spelling of 616128 in words is "six hundred sixteen thousand, one hundred twenty-eight".