1220433433 has 4 divisors (see below), whose sum is σ = 1231630180. Its totient is φ = 1209236688.

The previous prime is 1220433373. The next prime is 1220433457. The reversal of 1220433433 is 3343340221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 885836169 + 334597264 = 29763^2 + 18292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220433433 - 2¹⁷ = 1220302361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220433398 and 1220433407.

It is not an unprimeable number, because it can be changed into a prime (1220433233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5598210 + ... + 5598427.

It is an arithmetic number, because the mean of its divisors is an integer number (307907545).

Almost surely, 2^1220433433 is an apocalyptic number.

It is an amenable number.

1220433433 is a deficient number, since it is larger than the sum of its proper divisors (11196747).

1220433433 is a wasteful number, since it uses less digits than its factorization.

1220433433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11196746.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 1220433433 is about 34934.7024175103. The cubic root of 1220433433 is about 1068.6562550699.

Adding to 1220433433 its reverse (3343340221), we get a palindrome (4563773654).

The spelling of 1220433433 in words is "one billion, two hundred twenty million, four hundred thirty-three thousand, four hundred thirty-three".