1048421 has 4 divisors (see below), whose sum is σ = 1143744. Its totient is φ = 953100.

The previous prime is 1048391. The next prime is 1048423. The reversal of 1048421 is 1248401.

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 a cyclic number.

It is not a de Polignac number, because 1048421 - 2⁶ = 1048357 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1048393 and 1048402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47645 + ... + 47666.

It is an arithmetic number, because the mean of its divisors is an integer number (285936).

2^1048421 is an apocalyptic number.

1048421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1048421 is a deficient number, since it is larger than the sum of its proper divisors (95323).

1048421 is an equidigital number, since it uses as much as digits as its factorization.

1048421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95322.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1048421 is about 1023.9243136092. The cubic root of 1048421 is about 101.5886612369.

Subtracting from 1048421 its sum of digits (20), we obtain a palindrome (1048401).

The spelling of 1048421 in words is "one million, forty-eight thousand, four hundred twenty-one".