1200664444 has 36 divisors (see below), whose sum is σ = 2496233376. Its totient is φ = 503618304.

The previous prime is 1200664433. The next prime is 1200664481. The reversal of 1200664444 is 4444660021.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 55957 + ... + 74380.

It is an arithmetic number, because the mean of its divisors is an integer number (69339816).

Almost surely, 2^1200664444 is an apocalyptic number.

1200664444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1200664444 is an abundant number, since it is smaller than the sum of its proper divisors (1295568932).

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

1200664444 is a wasteful number, since it uses less digits than its factorization.

1200664444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130402 (or 130393 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 1200664444 is about 34650.6052472392. The cubic root of 1200664444 is about 1062.8546655246.

The spelling of 1200664444 in words is "one billion, two hundred million, six hundred sixty-four thousand, four hundred forty-four".