7852428 has 36 divisors (see below), whose sum is σ = 20191080. Its totient is φ = 2572416.

The previous prime is 7852421. The next prime is 7852433. The reversal of 7852428 is 8242587.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 7852392 and 7852401.

It is not an unprimeable number, because it can be changed into a prime (7852421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276 + ... + 3972.

Almost surely, 2^7852428 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 7852428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10095540).

7852428 is an abundant number, since it is smaller than the sum of its proper divisors (12338652).

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

7852428 is a wasteful number, since it uses less digits than its factorization.

7852428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3761 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 7852428 is about 2802.2184069055. The cubic root of 7852428 is about 198.7625932450.

The spelling of 7852428 in words is "seven million, eight hundred fifty-two thousand, four hundred twenty-eight".