1220655244 has 12 divisors (see below), whose sum is σ = 2136517768. Its totient is φ = 610221600.

The previous prime is 1220655221. The next prime is 1220655257. The reversal of 1220655244 is 4425560221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064 + ... + 49504.

Almost surely, 2^1220655244 is an apocalyptic number.

It is an amenable number.

1220655244 is a deficient number, since it is larger than the sum of its proper divisors (915862524).

1220655244 is a wasteful number, since it uses less digits than its factorization.

1220655244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53016 (or 53014 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1220655244 is about 34937.8769246215. The cubic root of 1220655244 is about 1068.7209930957.

The spelling of 1220655244 in words is "one billion, two hundred twenty million, six hundred fifty-five thousand, two hundred forty-four".