1220423350 has 24 divisors (see below), whose sum is σ = 2278035000. Its totient is φ = 486438720.

The previous prime is 1220423293. The next prime is 1220423381. The reversal of 1220423350 is 533240221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28975 + ... + 57274.

It is an arithmetic number, because the mean of its divisors is an integer number (94918125).

Almost surely, 2^1220423350 is an apocalyptic number.

1220423350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220423350 is a deficient number, since it is larger than the sum of its proper divisors (1057611650).

1220423350 is a wasteful number, since it uses less digits than its factorization.

1220423350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86544 (or 86539 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1220423350 is about 34934.5581051199. The cubic root of 1220423350 is about 1068.6533120469.

Adding to 1220423350 its reverse (533240221), we get a palindrome (1753663571).

The spelling of 1220423350 in words is "one billion, two hundred twenty million, four hundred twenty-three thousand, three hundred fifty".