1421849 has 16 divisors (see below), whose sum is σ = 1708224. Its totient is φ = 1166400.

The previous prime is 1421813. The next prime is 1421857. The reversal of 1421849 is 9481241.

It is a cyclic number.

It is not a de Polignac number, because 1421849 - 2²⁰ = 373273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8642 + ... + 8804.

It is an arithmetic number, because the mean of its divisors is an integer number (106764).

2^1421849 is an apocalyptic number.

It is an amenable number.

1421849 is a deficient number, since it is larger than the sum of its proper divisors (286375).

1421849 is a wasteful number, since it uses less digits than its factorization.

1421849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

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

The square root of 1421849 is about 1192.4130995590. The cubic root of 1421849 is about 112.4478507271.

It can be divided in two parts, 142 and 1849, that added together give a palindrome (1991).

The spelling of 1421849 in words is "one million, four hundred twenty-one thousand, eight hundred forty-nine".