2054421 has 12 divisors (see below), whose sum is σ = 3012672. Its totient is φ = 1348776.

The previous prime is 2054369. The next prime is 2054443. The reversal of 2054421 is 1244502.

It is not a de Polignac number, because 2054421 - 2¹⁰ = 2053397 is a prime.

It is a Curzon number.

2054421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2054394 and 2054403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1101 + ... + 2306.

It is an arithmetic number, because the mean of its divisors is an integer number (251056).

2^2054421 is an apocalyptic number.

It is an amenable number.

2054421 is a deficient number, since it is larger than the sum of its proper divisors (958251).

2054421 is a wasteful number, since it uses less digits than its factorization.

2054421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2054421 is about 1433.3251550154. The cubic root of 2054421 is about 127.1246631735.

Adding to 2054421 its reverse (1244502), we get a palindrome (3298923).

The spelling of 2054421 in words is "two million, fifty-four thousand, four hundred twenty-one".