612444768 has 48 divisors (see below), whose sum is σ = 1731337776. Its totient is φ = 188444160.

The previous prime is 612444761. The next prime is 612444779. The reversal of 612444768 is 867444216.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612444761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244123 + ... + 246618.

It is an arithmetic number, because the mean of its divisors is an integer number (36069537).

Almost surely, 2^612444768 is an apocalyptic number.

It is an amenable number.

612444768 is an abundant number, since it is smaller than the sum of its proper divisors (1118893008).

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

612444768 is a wasteful number, since it uses less digits than its factorization.

612444768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490767 (or 490759 counting only the distinct ones).

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

The square root of 612444768 is about 24747.6214614657. The cubic root of 612444768 is about 849.2240984119.

The spelling of 612444768 in words is "six hundred twelve million, four hundred forty-four thousand, seven hundred sixty-eight".