1304941421 has 4 divisors (see below), whose sum is σ = 1491361632. Its totient is φ = 1118521212.

The previous prime is 1304941411. The next prime is 1304941423. The reversal of 1304941421 is 1241494031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1241494031 = 29 ⋅42810139.

It is a cyclic number.

It is not a de Polignac number, because 1304941421 - 2²² = 1300747117 is a prime.

It is a super-2 number, since 2×1304941421² = 3405744224482998482, 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 (1304941423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93210095 + ... + 93210108.

It is an arithmetic number, because the mean of its divisors is an integer number (372840408).

Almost surely, 2^1304941421 is an apocalyptic number.

It is an amenable number.

1304941421 is a deficient number, since it is larger than the sum of its proper divisors (186420211).

1304941421 is an equidigital number, since it uses as much as digits as its factorization.

1304941421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186420210.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1304941421 is about 36123.9729404173. The cubic root of 1304941421 is about 1092.7739633089.

The spelling of 1304941421 in words is "one billion, three hundred four million, nine hundred forty-one thousand, four hundred twenty-one".