1220442134 has 8 divisors (see below), whose sum is σ = 1833721200. Its totient is φ = 609201736.

The previous prime is 1220442089. The next prime is 1220442161. The reversal of 1220442134 is 4312440221.

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

It is a congruent number.

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, 508169 + ... + 510564.

It is an arithmetic number, because the mean of its divisors is an integer number (229215150).

Almost surely, 2^1220442134 is an apocalyptic number.

1220442134 is a deficient number, since it is larger than the sum of its proper divisors (613279066).

1220442134 is a wasteful number, since it uses less digits than its factorization.

1220442134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019334.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1220442134 is about 34934.8269496215. The cubic root of 1220442134 is about 1068.6587947020.

Adding to 1220442134 its reverse (4312440221), we get a palindrome (5532882355).

The spelling of 1220442134 in words is "one billion, two hundred twenty million, four hundred forty-two thousand, one hundred thirty-four".