1220344413 has 8 divisors (see below), whose sum is σ = 1627956000. Its totient is φ = 813147888.

The previous prime is 1220344403. The next prime is 1220344421. The reversal of 1220344413 is 3144430221.

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

It is not a de Polignac number, because 1220344413 - 2²⁹ = 683473501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220344403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96838 + ... + 108711.

It is an arithmetic number, because the mean of its divisors is an integer number (203494500).

Almost surely, 2^1220344413 is an apocalyptic number.

It is an amenable number.

1220344413 is a deficient number, since it is larger than the sum of its proper divisors (407611587).

1220344413 is a wasteful number, since it uses less digits than its factorization.

1220344413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207531.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1220344413 is about 34933.4283029880. The cubic root of 1220344413 is about 1068.6302713796.

Adding to 1220344413 its reverse (3144430221), we get a palindrome (4364774634).

It can be divided in two parts, 12203 and 44413, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 1220344413 in words is "one billion, two hundred twenty million, three hundred forty-four thousand, four hundred thirteen".