7420288 has 32 divisors (see below), whose sum is σ = 15300000. Its totient is φ = 3580416.

The previous prime is 7420277. The next prime is 7420289. The reversal of 7420288 is 8820247.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (478125).

Almost surely, 2^7420288 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 7420288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7650000).

7420288 is an abundant number, since it is smaller than the sum of its proper divisors (7879712).

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

7420288 is a wasteful number, since it uses less digits than its factorization.

7420288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 7420288 is about 2724.0205579254. The cubic root of 7420288 is about 195.0474396961.

The spelling of 7420288 in words is "seven million, four hundred twenty thousand, two hundred eighty-eight".