1349421 has 4 divisors (see below), whose sum is σ = 1799232. Its totient is φ = 899612.

The previous prime is 1349407. The next prime is 1349423. The reversal of 1349421 is 1249431.

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: 1249431 = 3 ⋅416477.

It is a cyclic number.

It is not a de Polignac number, because 1349421 - 2⁶ = 1349357 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1349391 and 1349400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224901 + ... + 224906.

It is an arithmetic number, because the mean of its divisors is an integer number (449808).

2^1349421 is an apocalyptic number.

It is an amenable number.

1349421 is a deficient number, since it is larger than the sum of its proper divisors (449811).

1349421 is an equidigital number, since it uses as much as digits as its factorization.

1349421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449810.

The product of its digits is 864, while the sum is 24.

The square root of 1349421 is about 1161.6458152122. The cubic root of 1349421 is about 110.5051422980.

It can be divided in two parts, 1349 and 421, that added together give a triangular number (1770 = T₅₉).

The spelling of 1349421 in words is "one million, three hundred forty-nine thousand, four hundred twenty-one".