5539428 has 72 divisors (see below), whose sum is σ = 14982240. Its totient is φ = 1788480.

The previous prime is 5539427. The next prime is 5539439. The reversal of 5539428 is 8249355.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5539392 and 5539401.

It is not an unprimeable number, because it can be changed into a prime (5539427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39783 + ... + 39921.

Almost surely, 2^5539428 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 5539428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7491120).

5539428 is an abundant number, since it is smaller than the sum of its proper divisors (9442812).

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

5539428 is a wasteful number, since it uses less digits than its factorization.

5539428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 185 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 5539428 is about 2353.5989462948. The cubic root of 5539428 is about 176.9382145741.

The spelling of 5539428 in words is "five million, five hundred thirty-nine thousand, four hundred twenty-eight".