1321424718 has 16 divisors (see below), whose sum is σ = 2643556176. Its totient is φ = 440357120.

The previous prime is 1321424717. The next prime is 1321424723. The reversal of 1321424718 is 8174241231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321424717) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3363 + ... + 51518.

It is an arithmetic number, because the mean of its divisors is an integer number (165222261).

Almost surely, 2^1321424718 is an apocalyptic number.

1321424718 is an abundant number, since it is smaller than the sum of its proper divisors (1322131458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321424718 is a wasteful number, since it uses less digits than its factorization.

1321424718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58899.

The product of its digits is 10752, while the sum is 33.

The square root of 1321424718 is about 36351.4059975677. The cubic root of 1321424718 is about 1097.3558303299.

Adding to 1321424718 its reverse (8174241231), we get a palindrome (9495665949).

The spelling of 1321424718 in words is "one billion, three hundred twenty-one million, four hundred twenty-four thousand, seven hundred eighteen".