3020421 has 8 divisors (see below), whose sum is σ = 4136224. Its totient is φ = 1959120.

The previous prime is 3020401. The next prime is 3020431. The reversal of 3020421 is 1240203.

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

It is not a de Polignac number, because 3020421 - 2⁵ = 3020389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3020397 and 3020406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020401) 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, 13495 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (517028).

Almost surely, 2^3020421 is an apocalyptic number.

It is an amenable number.

3020421 is a deficient number, since it is larger than the sum of its proper divisors (1115803).

3020421 is a wasteful number, since it uses less digits than its factorization.

3020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27251.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 3020421 is about 1737.9358446157. The cubic root of 3020421 is about 144.5514637314.

Adding to 3020421 its reverse (1240203), we get a palindrome (4260624).

The spelling of 3020421 in words is "three million, twenty thousand, four hundred twenty-one".