616487424 has 120 divisors (see below), whose sum is σ = 1910734848. Its totient is φ = 176117760.

The previous prime is 616487413. The next prime is 616487437. The reversal of 616487424 is 424784616.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

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 11 ways as a sum of consecutive naturals, for example, 71169 + ... + 79359.

Almost surely, 2^616487424 is an apocalyptic number.

616487424 is a gapful number since it is divisible by the number (64) 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 616487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955367424).

616487424 is an abundant number, since it is smaller than the sum of its proper divisors (1294247424).

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

616487424 is an equidigital number, since it uses as much as digits as its factorization.

616487424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226 (or 8203 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 616487424 is about 24829.1647865972. The cubic root of 616487424 is about 851.0885357276.

The spelling of 616487424 in words is "six hundred sixteen million, four hundred eighty-seven thousand, four hundred twenty-four".