4838421 has 16 divisors (see below), whose sum is σ = 7807104. Its totient is φ = 2601984.

The previous prime is 4838399. The next prime is 4838443. The reversal of 4838421 is 1248384.

It is an interprime number because it is at equal distance from previous prime (4838399) and next prime (4838443).

It is not a de Polignac number, because 4838421 - 2¹³ = 4830229 is a prime.

4838421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4838461) 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, 6420 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (487944).

Almost surely, 2^4838421 is an apocalyptic number.

It is an amenable number.

4838421 is a deficient number, since it is larger than the sum of its proper divisors (2968683).

4838421 is a wasteful number, since it uses less digits than its factorization.

4838421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13580.

The product of its digits is 6144, while the sum is 30.

The square root of 4838421 is about 2199.6411070900. The cubic root of 4838421 is about 169.1354142671.

It can be divided in two parts, 48384 and 21, that multiplied together give a square (1016064 = 1008²).

The spelling of 4838421 in words is "four million, eight hundred thirty-eight thousand, four hundred twenty-one".