7624428 has 48 divisors (see below), whose sum is σ = 20509440. Its totient is φ = 2159424.

The previous prime is 7624427. The next prime is 7624429. The reversal of 7624428 is 8244267.

It is an interprime number because it is at equal distance from previous prime (7624427) and next prime (7624429).

It is not an unprimeable number, because it can be changed into a prime (7624423) 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 15 ways as a sum of consecutive naturals, for example, 11350 + ... + 12002.

It is an arithmetic number, because the mean of its divisors is an integer number (427280).

Almost surely, 2^7624428 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 7624428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10254720).

7624428 is an abundant number, since it is smaller than the sum of its proper divisors (12885012).

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

7624428 is a wasteful number, since it uses less digits than its factorization.

7624428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 804 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 7624428 is about 2761.2366794609. The cubic root of 7624428 is about 196.8199373350.

The spelling of 7624428 in words is "seven million, six hundred twenty-four thousand, four hundred twenty-eight".