1343443401 has 10 divisors (see below), whose sum is σ = 2006872362. Its totient is φ = 895628880.

The previous prime is 1343443399. The next prime is 1343443403. The reversal of 1343443401 is 1043443431.

It is an interprime number because it is at equal distance from previous prime (1343443399) and next prime (1343443403).

It can be written as a sum of positive squares in only one way, i.e., 1147583376 + 195860025 = 33876^2 + 13995^2 .

It is not a de Polignac number, because 1343443401 - 2¹ = 1343443399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1343443403) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8292780 + ... + 8292941.

Almost surely, 2^1343443401 is an apocalyptic number.

It is an amenable number.

1343443401 is a deficient number, since it is larger than the sum of its proper divisors (663428961).

1343443401 is an equidigital number, since it uses as much as digits as its factorization.

1343443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16585733 (or 16585724 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1343443401 is about 36653.0135323141. The cubic root of 1343443401 is about 1103.4173068153.

Adding to 1343443401 its reverse (1043443431), we get a palindrome (2386886832).

The spelling of 1343443401 in words is "one billion, three hundred forty-three million, four hundred forty-three thousand, four hundred one".