5481820 has 48 divisors (see below), whose sum is σ = 12737088. Its totient is φ = 1971200.

The previous prime is 5481811. The next prime is 5481821. The reversal of 5481820 is 281845.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481821) 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, 7470 + ... + 8170.

It is an arithmetic number, because the mean of its divisors is an integer number (265356).

Almost surely, 2^5481820 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 5481820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6368544).

5481820 is an abundant number, since it is smaller than the sum of its proper divisors (7255268).

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

5481820 is a wasteful number, since it uses less digits than its factorization.

5481820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 5481820 is about 2341.3286826074. The cubic root of 5481820 is about 176.3227119800.

The spelling of 5481820 in words is "five million, four hundred eighty-one thousand, eight hundred twenty".