1344413021 has 4 divisors (see below), whose sum is σ = 1536472032. Its totient is φ = 1152354012.

The previous prime is 1344413009. The next prime is 1344413033. The reversal of 1344413021 is 1203144431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1344413009) and next prime (1344413033).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344413021 is a prime.

It is a super-3 number, since 3×1344413021³ (a number of 28 digits) contains 333 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 (1344413071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96029495 + ... + 96029508.

It is an arithmetic number, because the mean of its divisors is an integer number (384118008).

Almost surely, 2^1344413021 is an apocalyptic number.

It is an amenable number.

1344413021 is a deficient number, since it is larger than the sum of its proper divisors (192059011).

1344413021 is an equidigital number, since it uses as much as digits as its factorization.

1344413021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192059010.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1344413021 is about 36666.2381626477. The cubic root of 1344413021 is about 1103.6827039768.

Adding to 1344413021 its reverse (1203144431), we get a palindrome (2547557452).

The spelling of 1344413021 in words is "one billion, three hundred forty-four million, four hundred thirteen thousand, twenty-one".