612432078 has 8 divisors (see below), whose sum is σ = 1224864168. Its totient is φ = 204144024.

The previous prime is 612432077. The next prime is 612432091. The reversal of 612432078 is 870234216.

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

612432078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612432071) 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 3 ways as a sum of consecutive naturals, for example, 51036001 + ... + 51036012.

It is an arithmetic number, because the mean of its divisors is an integer number (153108021).

Almost surely, 2^612432078 is an apocalyptic number.

612432078 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.

612432078 is a wasteful number, since it uses less digits than its factorization.

612432078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102072018.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 612432078 is about 24747.3650718617. The cubic root of 612432078 is about 849.2182329969.

The spelling of 612432078 in words is "six hundred twelve million, four hundred thirty-two thousand, seventy-eight".