1220364434 has 8 divisors (see below), whose sum is σ = 1830702720. Its totient is φ = 610130196.

The previous prime is 1220364427. The next prime is 1220364443. The reversal of 1220364434 is 4344630221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220364397 and 1220364406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18647 + ... + 52805.

It is an arithmetic number, because the mean of its divisors is an integer number (228837840).

Almost surely, 2^1220364434 is an apocalyptic number.

1220364434 is a deficient number, since it is larger than the sum of its proper divisors (610338286).

1220364434 is a wasteful number, since it uses less digits than its factorization.

1220364434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52024.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 1220364434 is about 34933.7148611481. The cubic root of 1220364434 is about 1068.6361153390.

Adding to 1220364434 its reverse (4344630221), we get a palindrome (5564994655).

The spelling of 1220364434 in words is "one billion, two hundred twenty million, three hundred sixty-four thousand, four hundred thirty-four".