1849421 has 8 divisors (see below), whose sum is σ = 2121984. Its totient is φ = 1578960.

The previous prime is 1849399. The next prime is 1849423. The reversal of 1849421 is 1249481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1849421 - 2⁶ = 1849357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (265248).

2^1849421 is an apocalyptic number.

It is an amenable number.

1849421 is a deficient number, since it is larger than the sum of its proper divisors (272563).

1849421 is an equidigital number, since it uses as much as digits as its factorization.

1849421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its digits is 2304, while the sum is 29.

The square root of 1849421 is about 1359.9341895842. The cubic root of 1849421 is about 122.7472944182.

The spelling of 1849421 in words is "one million, eight hundred forty-nine thousand, four hundred twenty-one".