612536444 has 18 divisors (see below), whose sum is σ = 1160739720. Its totient is φ = 282708816.

The previous prime is 612536413. The next prime is 612536513. The reversal of 612536444 is 444635216.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 452384 + ... + 453735.

It is an arithmetic number, because the mean of its divisors is an integer number (64485540).

Almost surely, 2^612536444 is an apocalyptic number.

It is an amenable number.

612536444 is a deficient number, since it is larger than the sum of its proper divisors (548203276).

612536444 is a wasteful number, since it uses less digits than its factorization.

612536444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906149 (or 906134 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 612536444 is about 24749.4736105639. The cubic root of 612536444 is about 849.2664693533.

The spelling of 612536444 in words is "six hundred twelve million, five hundred thirty-six thousand, four hundred forty-four".