4285421 has 8 divisors (see below), whose sum is σ = 4990464. Its totient is φ = 3603600.

The previous prime is 4285399. The next prime is 4285427. The reversal of 4285421 is 1245824.

It is a happy number.

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

It is not a de Polignac number, because 4285421 - 2⁶ = 4285357 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4285427) 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, 5405 + ... + 6146.

It is an arithmetic number, because the mean of its divisors is an integer number (623808).

Almost surely, 2^4285421 is an apocalyptic number.

It is an amenable number.

4285421 is a deficient number, since it is larger than the sum of its proper divisors (705043).

4285421 is a wasteful number, since it uses less digits than its factorization.

4285421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611.

The product of its digits is 2560, while the sum is 26.

The square root of 4285421 is about 2070.1258415855. The cubic root of 4285421 is about 162.4293468000.

It can be divided in two parts, 42854 and 21, that added together give a cube (42875 = 35³).

The spelling of 4285421 in words is "four million, two hundred eighty-five thousand, four hundred twenty-one".