1214660256 has 24 divisors (see below), whose sum is σ = 3188483424. Its totient is φ = 404886720.

The previous prime is 1214660231. The next prime is 1214660269. The reversal of 1214660256 is 6520664121.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6326260 + ... + 6326451.

It is an arithmetic number, because the mean of its divisors is an integer number (132853476).

Almost surely, 2^1214660256 is an apocalyptic number.

1214660256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1214660256 is an abundant number, since it is smaller than the sum of its proper divisors (1973823168).

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

1214660256 is a wasteful number, since it uses less digits than its factorization.

1214660256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12652724 (or 12652716 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1214660256 is about 34851.9763571594. The cubic root of 1214660256 is about 1066.9685225559.

The spelling of 1214660256 in words is "one billion, two hundred fourteen million, six hundred sixty thousand, two hundred fifty-six".