1318848421 has 8 divisors (see below), whose sum is σ = 1445976000. Its totient is φ = 1192926240.

The previous prime is 1318848409. The next prime is 1318848437. The reversal of 1318848421 is 1248488131.

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

It is not a de Polignac number, because 1318848421 - 2⁹ = 1318847909 is a prime.

It is a super-2 number, since 2×1318848421² = 3478722315148386482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318848521) 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, 299056 + ... + 303433.

It is an arithmetic number, because the mean of its divisors is an integer number (180747000).

Almost surely, 2^1318848421 is an apocalyptic number.

1318848421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1318848421 is a deficient number, since it is larger than the sum of its proper divisors (127127579).

1318848421 is a wasteful number, since it uses less digits than its factorization.

1318848421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602699.

The product of its digits is 49152, while the sum is 40.

The square root of 1318848421 is about 36315.9527067651. The cubic root of 1318848421 is about 1096.6422182794.

The spelling of 1318848421 in words is "one billion, three hundred eighteen million, eight hundred forty-eight thousand, four hundred twenty-one".