1220444234 has 4 divisors (see below), whose sum is σ = 1830666354. Its totient is φ = 610222116.

The previous prime is 1220444213. The next prime is 1220444287. The reversal of 1220444234 is 4324440221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1156204009 + 64240225 = 34003^2 + 8015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305111057 + ... + 305111060.

Almost surely, 2^1220444234 is an apocalyptic number.

1220444234 is a deficient number, since it is larger than the sum of its proper divisors (610222120).

1220444234 is an equidigital number, since it uses as much as digits as its factorization.

1220444234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610222119.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1220444234 is about 34934.8570055754. The cubic root of 1220444234 is about 1068.6594076444.

Adding to 1220444234 its reverse (4324440221), we get a palindrome (5544884455).

The spelling of 1220444234 in words is "one billion, two hundred twenty million, four hundred forty-four thousand, two hundred thirty-four".