7409028 has 72 divisors (see below), whose sum is σ = 19855584. Its totient is φ = 2131200.

The previous prime is 7409021. The next prime is 7409041. The reversal of 7409028 is 8209047.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 7408986 and 7409004.

It is not an unprimeable number, because it can be changed into a prime (7409021) 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, 180688 + ... + 180728.

It is an arithmetic number, because the mean of its divisors is an integer number (275772).

Almost surely, 2^7409028 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 7409028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9927792).

7409028 is an abundant number, since it is smaller than the sum of its proper divisors (12446556).

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

7409028 is a wasteful number, since it uses less digits than its factorization.

7409028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7409028 is about 2721.9529753469. The cubic root of 7409028 is about 194.9487307687.

The spelling of 7409028 in words is "seven million, four hundred nine thousand, twenty-eight".