612885384 has 96 divisors (see below), whose sum is σ = 1710858240. Its totient is φ = 198086400.

The previous prime is 612885359. The next prime is 612885389. The reversal of 612885384 is 483588216.

It is not an unprimeable number, because it can be changed into a prime (612885389) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 563289 + ... + 564375.

It is an arithmetic number, because the mean of its divisors is an integer number (17821440).

Almost surely, 2^612885384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612885384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855429120).

612885384 is an abundant number, since it is smaller than the sum of its proper divisors (1097972856).

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

612885384 is a wasteful number, since it uses less digits than its factorization.

612885384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1324 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 612885384 is about 24756.5220497549. The cubic root of 612885384 is about 849.4277042700.

The spelling of 612885384 in words is "six hundred twelve million, eight hundred eighty-five thousand, three hundred eighty-four".