1220600642 has 8 divisors (see below), whose sum is σ = 1841130000. Its totient is φ = 606890644.

The previous prime is 1220600609. The next prime is 1220600687. The reversal of 1220600642 is 2460060221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704392 + ... + 1705107.

It is an arithmetic number, because the mean of its divisors is an integer number (230141250).

Almost surely, 2^1220600642 is an apocalyptic number.

1220600642 is a deficient number, since it is larger than the sum of its proper divisors (620529358).

1220600642 is a wasteful number, since it uses less digits than its factorization.

1220600642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409680.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1220600642 is about 34937.0955003418. The cubic root of 1220600642 is about 1068.7050576179.

Adding to 1220600642 its reverse (2460060221), we get a palindrome (3680660863).

The spelling of 1220600642 in words is "one billion, two hundred twenty million, six hundred thousand, six hundred forty-two".