1200255366 has 16 divisors (see below), whose sum is σ = 2412576000. Its totient is φ = 398074248.

The previous prime is 1200255359. The next prime is 1200255379. The reversal of 1200255366 is 6635520021.

It is a super-3 number, since 3×1200255366³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501426 + ... + 503813.

It is an arithmetic number, because the mean of its divisors is an integer number (150786000).

Almost surely, 2^1200255366 is an apocalyptic number.

1200255366 is an abundant number, since it is smaller than the sum of its proper divisors (1212320634).

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

1200255366 is a wasteful number, since it uses less digits than its factorization.

1200255366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005443.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1200255366 is about 34644.7018460255. The cubic root of 1200255366 is about 1062.7339435218.

Adding to 1200255366 its reverse (6635520021), we get a palindrome (7835775387).

The spelling of 1200255366 in words is "one billion, two hundred million, two hundred fifty-five thousand, three hundred sixty-six".