612408018 has 8 divisors (see below), whose sum is σ = 1224816048. Its totient is φ = 204136004.

The previous prime is 612408011. The next prime is 612408037. The reversal of 612408018 is 810804216.

It is a sphenic number, since it is the product of 3 distinct primes.

612408018 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612408011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51033996 + ... + 51034007.

It is an arithmetic number, because the mean of its divisors is an integer number (153102006).

Almost surely, 2^612408018 is an apocalyptic number.

612408018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

612408018 is a wasteful number, since it uses less digits than its factorization.

612408018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102068008.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 612408018 is about 24746.8789547288. The cubic root of 612408018 is about 849.2071120584.

The spelling of 612408018 in words is "six hundred twelve million, four hundred eight thousand, eighteen".