1347368421 has 16 divisors (see below), whose sum is σ = 2058265728. Its totient is φ = 768000000.

The previous prime is 1347368417. The next prime is 1347368447. The reversal of 1347368421 is 1248637431.

It is not a de Polignac number, because 1347368421 - 2² = 1347368417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1347368421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347368471) by changing a digit.

It is a nontrivial repunit in base 20.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71580 + ... + 88421.

It is an arithmetic number, because the mean of its divisors is an integer number (128641608).

Almost surely, 2^1347368421 is an apocalyptic number.

It is an amenable number.

1347368421 is a deficient number, since it is larger than the sum of its proper divisors (710897307).

1347368421 is a wasteful number, since it uses less digits than its factorization.

1347368421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160412.

The product of its digits is 96768, while the sum is 39.

The square root of 1347368421 is about 36706.5174185730. The cubic root of 1347368421 is about 1104.4908476524.

It can be divided in two parts, 134736 and 8421, that multiplied together give a square (1134611856 = 33684²).

The spelling of 1347368421 in words is "one billion, three hundred forty-seven million, three hundred sixty-eight thousand, four hundred twenty-one".