7072320 has 112 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 1837056.

The previous prime is 7072277. The next prime is 7072321. The reversal of 7072320 is 232707.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7072321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50811 + ... + 50949.

It is an arithmetic number, because the mean of its divisors is an integer number (205740).

Almost surely, 2^7072320 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 7072320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11521440).

7072320 is an abundant number, since it is smaller than the sum of its proper divisors (15970560).

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

7072320 is a wasteful number, since it uses less digits than its factorization.

7072320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 7072320 is about 2659.3833871783. The cubic root of 7072320 is about 191.9496395697.

It can be divided in two parts, 70 and 72320, that added together give a triangular number (72390 = T₃₈₀).

The spelling of 7072320 in words is "seven million, seventy-two thousand, three hundred twenty".