5421020 has 48 divisors (see below), whose sum is σ = 12743136. Its totient is φ = 1920000.

The previous prime is 5421019. The next prime is 5421043. The reversal of 5421020 is 201245.

It is a junction number, because it is equal to n+sod(n) for n = 5420986 and 5421004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8720 + ... + 9320.

It is an arithmetic number, because the mean of its divisors is an integer number (265482).

Almost surely, 2^5421020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5421020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6371568).

5421020 is an abundant number, since it is smaller than the sum of its proper divisors (7322116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5421020 is a wasteful number, since it uses less digits than its factorization.

5421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 5421020 is about 2328.3083988166. The cubic root of 5421020 is about 175.6684097555.

Adding to 5421020 its reverse (201245), we get a palindrome (5622265).

The spelling of 5421020 in words is "five million, four hundred twenty-one thousand, twenty".