612201444 has 12 divisors (see below), whose sum is σ = 1428470064. Its totient is φ = 204067144.

The previous prime is 612201427. The next prime is 612201503. The reversal of 612201444 is 444102216.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×612201444³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25508382 + ... + 25508405.

It is an arithmetic number, because the mean of its divisors is an integer number (119039172).

Almost surely, 2^612201444 is an apocalyptic number.

It is an amenable number.

612201444 is an abundant number, since it is smaller than the sum of its proper divisors (816268620).

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

612201444 is a wasteful number, since it uses less digits than its factorization.

612201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51016794 (or 51016792 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 612201444 is about 24742.7048642625. The cubic root of 612201444 is about 849.1116180779. Note that the first 3 decimals are identical.

The spelling of 612201444 in words is "six hundred twelve million, two hundred one thousand, four hundred forty-four".